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#ignore thumbnails created by windows
Thumbs.db
#Ignore files build by Visual Studio
*.obj
*.exe
*.pdb
*.user
*.aps
*.pch
*.vspscc
*_i.c
*_p.c
*.ncb
*.suo
*.tlb
*.tlh
*.bak
*.cache
*.ilk
*.log
[Bb]in
[Dd]ebug*/
*.lib
*.sbr
obj/
[Rr]elease*/
_ReSharper*/
[Tt]est[Rr]esult*
.idea/
*.opensdf
## Ignore Visual Studio temporary files, build results, and
## files generated by popular Visual Studio add-ons.
# User-specific files
*.suo
*.user
*.userosscache
*.sln.docstates
# User-specific folders
*.sln.ide/
# Build results
[Dd]ebug/
[Dd]ebugPublic/
[Rr]elease/
[Rr]eleases/
x64/
x86/
build/
bld/
[Bb]in/
[Oo]bj/
# Roslyn cache directories
*.ide/
# MSTest test Results
[Tt]est[Rr]esult*/
[Bb]uild[Ll]og.*
#NUNIT
*.VisualState.xml
TestResult.xml
# Build Results of an ATL Project
[Dd]ebugPS/
[Rr]eleasePS/
dlldata.c
*_i.c
*_p.c
*_i.h
*.ilk
*.meta
*.obj
*.pch
*.pdb
*.pgc
*.pgd
*.rsp
*.sbr
*.tlb
*.tli
*.tlh
*.tmp
*.tmp_proj
*.log
*.vspscc
*.vssscc
.builds
*.pidb
*.svclog
*.scc
# Chutzpah Test files
_Chutzpah*
# Visual C++ cache files
ipch/
*.aps
*.ncb
*.opensdf
*.sdf
*.cachefile
# Visual Studio profiler
*.psess
*.vsp
*.vspx
# TFS 2012 Local Workspace
$tf/
# Guidance Automation Toolkit
*.gpState
# ReSharper is a .NET coding add-in
_ReSharper*/
*.[Rr]e[Ss]harper
*.DotSettings.user
# JustCode is a .NET coding addin-in
.JustCode
# TeamCity is a build add-in
_TeamCity*
# DotCover is a Code Coverage Tool
*.dotCover
# NCrunch
_NCrunch_*
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# MightyMoose
*.mm.*
AutoTest.Net/
# Web workbench (sass)
.sass-cache/
# Installshield output folder
[Ee]xpress/
# DocProject is a documentation generator add-in
DocProject/buildhelp/
DocProject/Help/*.HxT
DocProject/Help/*.HxC
DocProject/Help/*.hhc
DocProject/Help/*.hhk
DocProject/Help/*.hhp
DocProject/Help/Html2
DocProject/Help/html
# Click-Once directory
publish/
# Publish Web Output
*.[Pp]ublish.xml
*.azurePubxml
# TODO: Comment the next line if you want to checkin your web deploy settings
# but database connection strings (with potential passwords) will be unencrypted
*.pubxml
*.publishproj
# NuGet Packages
*.nupkg
# The packages folder can be ignored because of Package Restore
**/packages/*
# except build/, which is used as an MSBuild target.
!**/packages/build/
# If using the old MSBuild-Integrated Package Restore, uncomment this:
#!**/packages/repositories.config
# Windows Azure Build Output
csx/
*.build.csdef
# Windows Store app package directory
AppPackages/
# Others
sql/
*.Cache
ClientBin/
[Ss]tyle[Cc]op.*
~$*
*~
*.dbmdl
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*.pfx
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node_modules/
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# RIA/Silverlight projects
Generated_Code/
# Backup & report files from converting an old project file
# to a newer Visual Studio version. Backup files are not needed,
# because we have git ;-)
_UpgradeReport_Files/
Backup*/
UpgradeLog*.XML
UpgradeLog*.htm
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*.mdf
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*.rdl.data
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FakesAssemblies/
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CMakeFiles/*
nbproject/*
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*.cd
a.out
cmake-build-debug/*

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language: cpp
env:
global:
- CMAKE_EXTRA_CONF="-DCOMPILE_WITH_C_LOCALE=ON"
- CTEST_OUTPUT_ON_FAILURE=1
matrix:
include:
- name: "Ubuntu 16.04 LTS (Xenial Xerus) GCC 7"
os: linux
dist: xenial
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- g++-7
env:
- MATRIX_EVAL="CC=gcc-7 && CXX=g++-7"
- name: "Ubuntu 16.04 LTS (Xenial Xerus) GCC 8"
os: linux
dist: xenial
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- g++-8
env:
- MATRIX_EVAL="CC=gcc-8 && CXX=g++-8"
- name: "Ubuntu 16.04 LTS (Xenial Xerus) GCC 9"
os: linux
dist: xenial
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- g++-9
env:
- MATRIX_EVAL="CC=gcc-9 && CXX=g++-9"
- name: "Ubuntu 18.04 LTS (Bionic Beaver) GCC 7"
os: linux
dist: bionic
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- g++-7
env:
- MATRIX_EVAL="CC=gcc-7 && CXX=g++-7"
- name: "Ubuntu 18.04 LTS (Bionic Beaver) GCC 8"
os: linux
dist: bionic
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- g++-8
env:
- MATRIX_EVAL="CC=gcc-8 && CXX=g++-8"
- name: "Ubuntu 18.04 LTS (Bionic Beaver) Clang 6"
os: linux
dist: bionic
addons:
apt:
sources:
- llvm-toolchain-bionic-6.0
packages:
- clang-6.0
env:
- MATRIX_EVAL="CC=clang-6.0 && CXX=clang++-6.0"
- name: "Ubuntu 18.04 LTS (Bionic Beaver) Clang 7"
os: linux
dist: bionic
addons:
apt:
sources:
- llvm-toolchain-bionic-7
packages:
- clang-7
env:
- MATRIX_EVAL="CC=clang-7 && CXX=clang++-7"
- name: "Ubuntu 18.04 LTS (Bionic Beaver) Clang 8"
os: linux
dist: bionic
addons:
apt:
sources:
- llvm-toolchain-bionic-8
packages:
- clang-8
env:
- MATRIX_EVAL="CC=clang-8 && CXX=clang++-8"
- &macos
name: xcode10
os: osx
osx_image: xcode10.2
env:
- CMAKE_EXTRA_CONF=""
addons:
homebrew:
packages:
- bash
- ninja
- <<: *macos
name: xcode9
# xcode 9 only works if we tell it to use c++14 explicitly
env:
- CMAKE_EXTRA_CONF="-DCMAKE_CXX_STANDARD=14"
osx_image: xcode9.4
- <<: *macos
osx_image: xcode11
name: xcode11
before_install:
- eval "${MATRIX_EVAL}"
- ci/install_cmake.sh 3.15.2
- export OPENSSL_ROOT=$(brew --prefix openssl@1.1)
- if [ "$(uname)" = "Darwin" ] ; then export PATH="$HOME/cmake/CMake.app/Contents/bin:${PATH}"; fi
- if [ "$(uname)" = "Linux" ] ; then export PATH="$HOME/cmake/bin:${PATH}"; fi
cache:
directories:
- $HOME/cmake
script:
- mkdir -p build
- cd build
- eval cmake -DENABLE_DATE_TESTING=ON -DBUILD_SHARED_LIBS=ON ${CMAKE_EXTRA_CONF} ..
- cmake --build . --parallel
- cmake --build . --parallel --target testit

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#[===================================================================[
date library by Howard Hinnant
CMake projects that wish to use this library should consider
something like the following :
include( FetchContent )
FetchContent_Declare( date_src
GIT_REPOSITORY https://github.com/HowardHinnant/date.git
GIT_TAG v3.0.0 # adjust tag/branch/commit as needed
)
FetchContent_MakeAvailable(date_src)
...
target_link_libraries (my_target PRIVATE date::date)
#]===================================================================]
cmake_minimum_required( VERSION 3.7 )
project( date VERSION 3.0.0 )
set(ABI_VERSION 3) # used as SOVERSION, increment when ABI changes
include( GNUInstallDirs )
get_directory_property( has_parent PARENT_DIRECTORY )
# Override by setting on CMake command line.
set( CMAKE_CXX_STANDARD 11 CACHE STRING "The C++ standard whose features are requested." )
option( USE_SYSTEM_TZ_DB "Use the operating system's timezone database" ON )
option( MANUAL_TZ_DB "User will set TZ DB manually by invoking set_install in their code" OFF )
option( USE_TZ_DB_IN_DOT "Save the timezone database in the current folder" OFF )
option( BUILD_SHARED_LIBS "Build a shared version of library" OFF )
option( ENABLE_DATE_TESTING "Enable unit tests" OFF )
option( DISABLE_STRING_VIEW "Disable string view" ON )
option( COMPILE_WITH_C_LOCALE "define ONLY_C_LOCALE=1" OFF )
option( BUILD_TZ_LIB "build/install of TZ library" ON )
if( ENABLE_DATE_TESTING AND NOT BUILD_TZ_LIB )
message(WARNING "Testing requested, bug BUILD_TZ_LIB not ON - forcing the latter")
set (BUILD_TZ_LIB ON CACHE BOOL "required for testing" FORCE)
endif( )
function( print_option OPT )
if ( NOT DEFINED PRINT_OPTION_CURR_${OPT} OR ( NOT PRINT_OPTION_CURR_${OPT} STREQUAL ${OPT} ) )
set( PRINT_OPTION_CURR_${OPT} ${${OPT}} CACHE BOOL "" )
mark_as_advanced(PRINT_OPTION_CURR_${OPT})
message( "# date: ${OPT} ${${OPT}}" )
endif( )
endfunction( )
print_option( USE_SYSTEM_TZ_DB )
print_option( MANUAL_TZ_DB )
print_option( USE_TZ_DB_IN_DOT )
print_option( BUILD_SHARED_LIBS )
print_option( ENABLE_DATE_TESTING )
print_option( DISABLE_STRING_VIEW )
#[===================================================================[
date (header only) library
#]===================================================================]
add_library( date INTERFACE )
add_library( date::date ALIAS date )
target_include_directories( date INTERFACE
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:include> )
# adding header sources just helps IDEs
target_sources( date INTERFACE
$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>$<INSTALL_INTERFACE:include>/date/date.h
# the rest of these are not currently part of the public interface of the library:
$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include/date/solar_hijri.h>
$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include/date/islamic.h>
$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include/date/iso_week.h>
$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include/date/julian.h>
)
if (CMAKE_VERSION VERSION_GREATER_EQUAL 3.15)
# public headers will get installed:
set_target_properties( date PROPERTIES PUBLIC_HEADER include/date/date.h )
endif ()
# These used to be set with generator expressions,
#
# ONLY_C_LOCALE=$<IF:$<BOOL:${COMPILE_WITH_C_LOCALE}>,1,0>
#
# which expand in the output target file to, e.g.
#
# ONLY_C_LOCALE=$<IF:$<BOOL:FALSE>,1,0>
#
# This string is then (somtimes?) not correctly interpreted.
if ( COMPILE_WITH_C_LOCALE )
# To workaround libstdc++ issue https://github.com/HowardHinnant/date/issues/388
target_compile_definitions( date INTERFACE ONLY_C_LOCALE=1 )
else()
target_compile_definitions( date INTERFACE ONLY_C_LOCALE=0 )
endif()
if ( DISABLE_STRING_VIEW )
target_compile_definitions( date INTERFACE HAS_STRING_VIEW=0 -DHAS_DEDUCTION_GUIDES=0 )
endif()
#[===================================================================[
tz (compiled) library
#]===================================================================]
if( BUILD_TZ_LIB )
add_library( date-tz )
target_sources( date-tz
PUBLIC
$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>$<INSTALL_INTERFACE:include>/date/tz.h
PRIVATE
include/date/tz_private.h
src/tz.cpp )
if ( IOS )
target_sources( date-tz
PUBLIC
$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>$<INSTALL_INTERFACE:include>/date/ios.h
PRIVATE
src/ios.mm )
endif()
add_library( date::date-tz ALIAS date-tz )
target_link_libraries( date-tz PUBLIC date )
target_include_directories( date-tz PUBLIC
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:include> )
if ( USE_SYSTEM_TZ_DB OR MANUAL_TZ_DB )
target_compile_definitions( date-tz PRIVATE AUTO_DOWNLOAD=0 HAS_REMOTE_API=0 )
else()
target_compile_definitions( date-tz PRIVATE AUTO_DOWNLOAD=1 HAS_REMOTE_API=1 )
endif()
if ( USE_SYSTEM_TZ_DB AND NOT WIN32 AND NOT MANUAL_TZ_DB )
target_compile_definitions( date-tz PRIVATE INSTALL=. PUBLIC USE_OS_TZDB=1 )
else()
target_compile_definitions( date-tz PUBLIC USE_OS_TZDB=0 )
endif()
if ( WIN32 AND BUILD_SHARED_LIBS )
target_compile_definitions( date-tz PUBLIC DATE_BUILD_DLL=1 )
endif()
set(TZ_HEADERS include/date/tz.h)
if( IOS )
list(APPEND TZ_HEADERS include/date/ios.h)
endif( )
set_target_properties( date-tz PROPERTIES
POSITION_INDEPENDENT_CODE ON
PUBLIC_HEADER "${TZ_HEADERS}"
VERSION "${PROJECT_VERSION}"
SOVERSION "${ABI_VERSION}" )
if( NOT MSVC )
find_package( Threads )
target_link_libraries( date-tz PUBLIC Threads::Threads )
endif( )
if( NOT USE_SYSTEM_TZ_DB AND NOT MANUAL_TZ_DB )
find_package( CURL REQUIRED )
target_include_directories( date-tz SYSTEM PRIVATE ${CURL_INCLUDE_DIRS} )
target_link_libraries( date-tz PRIVATE ${CURL_LIBRARIES} )
endif( )
endif( )
#[===================================================================[
installation
#]===================================================================]
set( version_config "${CMAKE_CURRENT_BINARY_DIR}/dateConfigVersion.cmake" )
include( CMakePackageConfigHelpers )
write_basic_package_version_file( "${version_config}"
VERSION ${PROJECT_VERSION}
COMPATIBILITY SameMajorVersion )
install( TARGETS date
EXPORT dateConfig
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/date )
export( TARGETS date NAMESPACE date:: FILE dateTargets.cmake )
if (CMAKE_VERSION VERSION_LESS 3.15)
install(
FILES include/date/date.h
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/date )
endif ()
if( BUILD_TZ_LIB )
install( TARGETS date-tz
EXPORT dateConfig
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/date
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} ) # This is for Windows
export( TARGETS date-tz NAMESPACE date:: APPEND FILE dateTargets.cmake )
endif( )
if( WIN32 AND NOT CYGWIN)
set( CONFIG_LOC CMake )
else( )
set( CONFIG_LOC "${CMAKE_INSTALL_LIBDIR}/cmake/date" )
endif( )
install( EXPORT dateConfig
FILE dateTargets.cmake
NAMESPACE date::
DESTINATION ${CONFIG_LOC} )
install (
FILES cmake/dateConfig.cmake "${version_config}"
DESTINATION ${CONFIG_LOC})
#[===================================================================[
testing
#]===================================================================]
if( ENABLE_DATE_TESTING )
enable_testing( )
add_custom_target( testit COMMAND ${CMAKE_CTEST_COMMAND} )
add_dependencies( testit date-tz )
function( add_pass_tests TEST_GLOB TEST_PREFIX )
file( GLOB_RECURSE FILENAMES ${TEST_GLOB} )
foreach( TEST_FILE ${FILENAMES} )
get_filename_component( TEST_NAME ${TEST_FILE} NAME_WE )
get_filename_component( TEST_EXT ${TEST_FILE} EXT )
if( NOT ${TEST_EXT} STREQUAL ".fail.cpp" )
set( PREFIX "${TEST_PREFIX}_pass_${TEST_NAME}" )
set( BIN_NAME ${PREFIX}_bin )
set( TST_NAME ${PREFIX}_test )
add_executable( ${BIN_NAME} EXCLUDE_FROM_ALL ${TEST_FILE} )
add_test( ${TST_NAME} ${BIN_NAME} )
target_link_libraries( ${BIN_NAME} date-tz )
# HACK: because the test files don't use FQ includes:
target_include_directories( ${BIN_NAME} PRIVATE include/date )
add_dependencies( testit ${BIN_NAME} )
endif( )
endforeach( )
endfunction( )
function( add_fail_tests TEST_GLOB TEST_PREFIX )
file( GLOB_RECURSE FILENAMES ${TEST_GLOB} )
foreach( TEST_FILE ${FILENAMES} )
get_filename_component( TEST_NAME ${TEST_FILE} NAME_WE )
get_filename_component( TEST_EXT ${TEST_FILE} EXT )
set( TEST_TYPE "_fail" )
set( PREFIX "${TEST_PREFIX}_fail_${TEST_NAME}" )
set( BIN_NAME ${PREFIX}_bin )
set( TST_NAME ${PREFIX}_test )
set( TEST_BIN_NAME ${CMAKE_BINARY_DIR}/${BIN_NAME} )
add_custom_target( ${BIN_NAME}
COMMAND
${PROJECT_SOURCE_DIR}/compile_fail.sh
${TEST_BIN_NAME}
${CMAKE_CXX_COMPILER}
-std=c++14
-L${CMAKE_BINARY_DIR}/
-ldate-tz
-I${PROJECT_SOURCE_DIR}/include
-I${PROJECT_SOURCE_DIR}/include/date
-o ${BIN_NAME}
${TEST_FILE}
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
COMMENT ${TST_NAME} )
add_test( ${TST_NAME} "${PROJECT_SOURCE_DIR}/test_fail.sh" ${CMAKE_BINARY_DIR}/${BIN_NAME} WORKING_DIRECTORY "${PROJECT_SOURCE_DIR}/" )
#set_tests_properties( ${TST_NAME} PROPERTIES WILL_FAIL TRUE)
add_dependencies( testit ${BIN_NAME} )
endforeach( )
endfunction( )
file( GLOB children RELATIVE "${PROJECT_SOURCE_DIR}/test" "${PROJECT_SOURCE_DIR}/test/*" )
foreach( child ${children} )
if( IS_DIRECTORY "${PROJECT_SOURCE_DIR}/test/${child}" )
set( CUR_FOLDER "${PROJECT_SOURCE_DIR}/test/${child}" )
add_pass_tests( "${CUR_FOLDER}/*.cpp" ${child} )
if( NOT WIN32 )
add_fail_tests( "${CUR_FOLDER}/*.fail.cpp" ${child} )
endif( )
endif( )
endforeach( )
endif( )

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The source code in this project is released using the MIT License. There is no
global license for the project because each file is licensed individually with
different author names and/or dates.
If you contribute to this project, please add your name to the license of each
file you modify. If you have already contributed to this project and forgot to
add your name to the license, please feel free to submit a new P/R to add your
name to the license in each file you modified.
For convenience, here is a copy of the MIT license found in each file except
without author names or dates:
The MIT License (MIT)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# Date
[![Build Status](https://travis-ci.org/HowardHinnant/date.svg?branch=master)](https://travis-ci.org/HowardHinnant/date)
[![Join the chat at https://gitter.im/HowardHinnant/date](https://badges.gitter.im/HowardHinnant/date.svg)](https://gitter.im/HowardHinnant/date?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
---
**[Try it out on wandbox!](https://wandbox.org/permlink/oyXjibyF680HHoyS)**
## Summary
This is actually several separate C++11/C++14/C++17 libraries:
1. `"date.h"` is a header-only library which builds upon `<chrono>`. It adds some new `duration` types, and new `time_point` types. It also adds "field" types such as `year_month_day` which is a struct `{year, month, day}`. And it provides convenient means to convert between the "field" types and the `time_point` types.
* Documentation: http://howardhinnant.github.io/date/date.html
* Video: https://www.youtube.com/watch?v=tzyGjOm8AKo
* Slides: http://schd.ws/hosted_files/cppcon2015/43/hinnant_dates.pdf
1. `"tz.h"` / `"tz.cpp"` are a timezone library built on top of the `"date.h"` library. This timezone library is a complete parser of the IANA timezone database. It provides for an easy way to access all of the data in this database, using the types from `"date.h"` and `<chrono>`. The IANA database also includes data on leap seconds, and this library provides utilities to compute with that information as well.
* Documentation: http://howardhinnant.github.io/date/tz.html
* Video: https://www.youtube.com/watch?v=Vwd3pduVGKY
* Slides: http://schd.ws/hosted_files/cppcon2016/0f/Welcome%20To%20The%20Time%20Zone%20-%20Howard%20Hinnant%20-%20CppCon%202016.pdf
1. `"iso_week.h"` is a header-only library built on top of the `"date.h"` library which implements the ISO week date calendar.
* Documentation: http://howardhinnant.github.io/date/iso_week.html
1. `"julian.h"` is a header-only library built on top of the `"date.h"` library which implements a proleptic Julian calendar which is fully interoperable with everything above.
* Documentation: http://howardhinnant.github.io/date/julian.html
1. `"islamic.h"` is a header-only library built on top of the `"date.h"` library which implements a proleptic Islamic calendar which is fully interoperable with everything above.
* Documentation: http://howardhinnant.github.io/date/islamic.html
## Standardization
Slightly modified versions of `"date.h"` and `"tz.h"` were voted into the C++20 working draft at the Jacksonville FL meeting on 2018-03-17:
* http://howardhinnant.github.io/date/d0355r7.html
## Build & Test
The recommended way to use any of these libraries besides `"tz.h"` is to just include it. These are header-only libraries (except `"tz.h"`).
To use `"tz.h"`, there is a single source file (`src/tz.cpp`) that needs to be compiled. Here are the recommended directions: https://howardhinnant.github.io/date/tz.html#Installation.
One can run tests by cd'ing into the `test` subdirectory and running `testit`. There are known failures on all platforms except for macOS. And even on macOS if C++11 is used. If any of these failures present problems for you, there exist workarounds.
Additionally there is _unsupported_ support for [vcpkg](https://github.com/Microsoft/vcpkg) and [CMake](https://cmake.org/). I don't personally use or maintain these systems as for me they cause more problems than they solve (for this small project). If you would like to contribute to these build systems please feel free to file a PR.
You can download and install Date using the [vcpkg](https://github.com/Microsoft/vcpkg) dependency manager:
git clone https://github.com/Microsoft/vcpkg.git
cd vcpkg
./bootstrap-vcpkg.sh
./vcpkg integrate install
vcpkg install date
The Date port in vcpkg is updated by Microsoft team members and community contributors. If the version falls behind, please [create an issue or pull request](https://github.com/Microsoft/vcpkg) on the vcpkg repository.
You can optionally build using [CMake](https://cmake.org/). Here is a guide of how to build and test using the CMake Makefile generator.
```bash
mkdir build
cd build
cmake -DENABLE_DATE_TESTING=ON -DBUILD_TZ_LIB=ON ../
cmake --build . --target testit # Consider '-- -j4' for multithreading
```
## Projects using this library
* www.safe.com
* www.webtoolkit.eu/wt
* https://github.com/ViewTouch/viewtouch
* https://routinghub.com
* https://github.com/valhalla
* https://github.com/siodb/siodb
* https://github.com/KomodoPlatform/atomicDEX-Pro
* https://github.com/Kotlin/kotlinx-datetime
* https://github.com/royalbee/jewish_date
If you would like your project (or product) on this list, just let me know.

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#!/usr/bin/env bash
set -e
IFS=. read cm_maj cm_min cm_rel <<<"$1"
: ${cm_rel:-0}
CMAKE_ROOT=${2:-"${HOME}/cmake"}
function cmake_version ()
{
if [[ -d ${CMAKE_ROOT} ]] ; then
local perms=$(test $(uname) = "Linux" && echo "/111" || echo "+111")
local installed=$(find ${CMAKE_ROOT} -perm ${perms} -type f -name cmake)
if [[ "${installed}" != "" ]] ; then
echo "$(${installed} --version | head -1)"
fi
fi
}
installed=$(cmake_version)
if [[ "${installed}" != "" && ${installed} =~ ${cm_maj}.${cm_min}.${cm_rel} ]] ; then
echo "cmake already installed: ${installed}"
exit
fi
pkgname="cmake-${cm_maj}.${cm_min}.${cm_rel}-$(uname)-x86_64.tar.gz"
tmppkg="/tmp/cmake.tar.gz"
wget --quiet https://cmake.org/files/v${cm_maj}.${cm_min}/${pkgname} -O ${tmppkg}
mkdir -p ${CMAKE_ROOT}
cd ${CMAKE_ROOT}
tar --strip-components 1 -xf ${tmppkg}
rm -f ${tmppkg}
echo "installed: $(cmake_version)"

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include( CMakeFindDependencyMacro )
include( "${CMAKE_CURRENT_LIST_DIR}/dateTargets.cmake" )
if( NOT MSVC AND TARGET date::date-tz )
find_dependency( Threads REQUIRED)
get_target_property( _tzill date::date-tz INTERFACE_LINK_LIBRARIES )
if( _tzill AND "${_tzill}" MATCHES "libcurl" )
find_dependency( CURL )
endif( )
endif( )

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third_party/date/compile_fail.sh vendored Executable file
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#!/bin/bash
export TEST_BIN_NAME=$1
#echo "Building ${TEST_BIN_NAME}"
shift 1
export BUILD_COMMAND=$@
#echo "Build command: ${BUILD_COMMAND}"
eval ${BUILD_COMMAND} >/dev/null 2>/dev/null
if [ $? -eq 0 ]; then
echo -ne "#!/bin/bash\nexit 1;" > ${TEST_BIN_NAME}
else
echo -ne "#!/bin/bash\nexit 0;" > ${TEST_BIN_NAME}
fi
chmod u+x ${TEST_BIN_NAME}
exit 0;

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#ifndef CHRONO_IO_H
#define CHRONO_IO_H
// The MIT License (MIT)
//
// Copyright (c) 2016, 2017 Howard Hinnant
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// Our apologies. When the previous paragraph was written, lowercase had not yet
// been invented (that would involve another several millennia of evolution).
// We did not mean to shout.
// This functionality has moved to "date.h"
#include "date.h"
#endif // CHRONO_IO_H

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third_party/date/include/date/ios.h vendored Normal file
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//
// ios.h
// DateTimeLib
//
// The MIT License (MIT)
//
// Copyright (c) 2016 Alexander Kormanovsky
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#ifndef ios_hpp
#define ios_hpp
#if __APPLE__
# include <TargetConditionals.h>
# if TARGET_OS_IPHONE
# include <string>
namespace date
{
namespace iOSUtils
{
std::string get_tzdata_path();
std::string get_current_timezone();
} // namespace iOSUtils
} // namespace date
# endif // TARGET_OS_IPHONE
#else // !__APPLE__
# define TARGET_OS_IPHONE 0
#endif // !__APPLE__
#endif // ios_hpp

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third_party/date/include/date/ptz.h vendored Normal file
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#ifndef PTZ_H
#define PTZ_H
// The MIT License (MIT)
//
// Copyright (c) 2017 Howard Hinnant
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// This header allows Posix-style time zones as specified for TZ here:
// http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html#tag_08_03
//
// Posix::time_zone can be constructed with a posix-style string and then used in
// a zoned_time like so:
//
// zoned_time<system_clock::duration, Posix::time_zone> zt{"EST5EDT,M3.2.0,M11.1.0",
// system_clock::now()};
// or:
//
// Posix::time_zone tz{"EST5EDT,M3.2.0,M11.1.0"};
// zoned_time<system_clock::duration, Posix::time_zone> zt{tz, system_clock::now()};
//
// If the rule set is missing (everything starting with ','), then the rule is that the
// alternate offset is never enabled.
//
// Note, Posix-style time zones are not recommended for all of the reasons described here:
// https://stackoverflow.com/tags/timezone/info
//
// They are provided here as a non-trivial custom time zone example, and if you really
// have to have Posix time zones, you're welcome to use this one.
#include "date/tz.h"
#include <cctype>
#include <ostream>
#include <string>
namespace Posix
{
namespace detail
{
#if HAS_STRING_VIEW
using string_t = std::string_view;
#else // !HAS_STRING_VIEW
using string_t = std::string;
#endif // !HAS_STRING_VIEW
class rule;
void throw_invalid(const string_t& s, unsigned i, const string_t& message);
unsigned read_date(const string_t& s, unsigned i, rule& r);
unsigned read_name(const string_t& s, unsigned i, std::string& name);
unsigned read_signed_time(const string_t& s, unsigned i, std::chrono::seconds& t);
unsigned read_unsigned_time(const string_t& s, unsigned i, std::chrono::seconds& t);
unsigned read_unsigned(const string_t& s, unsigned i, unsigned limit, unsigned& u,
const string_t& message = string_t{});
class rule
{
enum {off, J, M, N};
date::month m_;
date::weekday wd_;
unsigned short n_ : 14;
unsigned short mode_ : 2;
std::chrono::duration<std::int32_t> time_ = std::chrono::hours{2};
public:
rule() : mode_(off) {}
bool ok() const {return mode_ != off;}
date::local_seconds operator()(date::year y) const;
std::string to_string() const;
friend std::ostream& operator<<(std::ostream& os, const rule& r);
friend unsigned read_date(const string_t& s, unsigned i, rule& r);
friend bool operator==(const rule& x, const rule& y);
};
inline
bool
operator==(const rule& x, const rule& y)
{
if (x.mode_ != y.mode_)
return false;
switch (x.mode_)
{
case rule::J:
case rule::N:
return x.n_ == y.n_;
case rule::M:
return x.m_ == y.m_ && x.n_ == y.n_ && x.wd_ == y.wd_;
default:
return true;
}
}
inline
bool
operator!=(const rule& x, const rule& y)
{
return !(x == y);
}
inline
date::local_seconds
rule::operator()(date::year y) const
{
using date::local_days;
using date::January;
using date::days;
using date::last;
using sec = std::chrono::seconds;
date::local_seconds t;
switch (mode_)
{
case J:
t = local_days{y/January/0} + days{n_ + (y.is_leap() && n_ > 59)} + sec{time_};
break;
case M:
t = (n_ == 5 ? local_days{y/m_/wd_[last]} : local_days{y/m_/wd_[n_]}) + sec{time_};
break;
case N:
t = local_days{y/January/1} + days{n_} + sec{time_};
break;
default:
assert(!"rule called with bad mode");
}
return t;
}
inline
std::string
rule::to_string() const
{
using namespace std::chrono;
auto print_offset = [](seconds off)
{
std::string nm;
if (off != hours{2})
{
date::hh_mm_ss<seconds> offset{off};
nm = '/';
nm += std::to_string(offset.hours().count());
if (offset.minutes() != minutes{0} || offset.seconds() != seconds{0})
{
nm += ':';
if (offset.minutes() < minutes{10})
nm += '0';
nm += std::to_string(offset.minutes().count());
if (offset.seconds() != seconds{0})
{
nm += ':';
if (offset.seconds() < seconds{10})
nm += '0';
nm += std::to_string(offset.seconds().count());
}
}
}
return nm;
};
std::string nm;
switch (mode_)
{
case rule::J:
nm = 'J';
nm += std::to_string(n_);
break;
case rule::M:
nm = 'M';
nm += std::to_string(static_cast<unsigned>(m_));
nm += '.';
nm += std::to_string(n_);
nm += '.';
nm += std::to_string(wd_.c_encoding());
break;
case rule::N:
nm = std::to_string(n_);
break;
default:
break;
}
nm += print_offset(time_);
return nm;
}
inline
std::ostream&
operator<<(std::ostream& os, const rule& r)
{
switch (r.mode_)
{
case rule::J:
os << 'J' << r.n_ << date::format(" %T", r.time_);
break;
case rule::M:
if (r.n_ == 5)
os << r.m_/r.wd_[date::last];
else
os << r.m_/r.wd_[r.n_];
os << date::format(" %T", r.time_);
break;
case rule::N:
os << r.n_ << date::format(" %T", r.time_);
break;
default:
break;
}
return os;
}
} // namespace detail
class time_zone
{
std::string std_abbrev_;
std::string dst_abbrev_ = {};
std::chrono::seconds offset_;
std::chrono::seconds save_ = std::chrono::hours{1};
detail::rule start_rule_;
detail::rule end_rule_;
public:
explicit time_zone(const detail::string_t& name);
template <class Duration>
date::sys_info get_info(date::sys_time<Duration> st) const;
template <class Duration>
date::local_info get_info(date::local_time<Duration> tp) const;
template <class Duration>
date::sys_time<typename std::common_type<Duration, std::chrono::seconds>::type>
to_sys(date::local_time<Duration> tp) const;
template <class Duration>
date::sys_time<typename std::common_type<Duration, std::chrono::seconds>::type>
to_sys(date::local_time<Duration> tp, date::choose z) const;
template <class Duration>
date::local_time<typename std::common_type<Duration, std::chrono::seconds>::type>
to_local(date::sys_time<Duration> tp) const;
friend std::ostream& operator<<(std::ostream& os, const time_zone& z);
const time_zone* operator->() const {return this;}
std::string name() const;
friend bool operator==(const time_zone& x, const time_zone& y);
private:
date::sys_seconds get_start(date::year y) const;
date::sys_seconds get_prev_start(date::year y) const;
date::sys_seconds get_next_start(date::year y) const;
date::sys_seconds get_end(date::year y) const;
date::sys_seconds get_prev_end(date::year y) const;
date::sys_seconds get_next_end(date::year y) const;
date::sys_info contant_offset() const;
};
inline
date::sys_seconds
time_zone::get_start(date::year y) const
{
return date::sys_seconds{(start_rule_(y) - offset_).time_since_epoch()};
}
inline
date::sys_seconds
time_zone::get_prev_start(date::year y) const
{
return date::sys_seconds{(start_rule_(--y) - offset_).time_since_epoch()};
}
inline
date::sys_seconds
time_zone::get_next_start(date::year y) const
{
return date::sys_seconds{(start_rule_(++y) - offset_).time_since_epoch()};
}
inline
date::sys_seconds
time_zone::get_end(date::year y) const
{
return date::sys_seconds{(end_rule_(y) - (offset_ + save_)).time_since_epoch()};
}
inline
date::sys_seconds
time_zone::get_prev_end(date::year y) const
{
return date::sys_seconds{(end_rule_(--y) - (offset_ + save_)).time_since_epoch()};
}
inline
date::sys_seconds
time_zone::get_next_end(date::year y) const
{
return date::sys_seconds{(end_rule_(++y) - (offset_ + save_)).time_since_epoch()};
}
date::sys_info
time_zone::contant_offset() const
{
using date::year;
using date::sys_info;
using date::sys_days;
using date::January;
using date::December;
using date::last;
sys_info r;
r.begin = sys_days{year::min()/January/1};
r.end = sys_days{year::max()/December/last};
r.abbrev = std_abbrev_;
r.offset = offset_;
return r;
}
inline
time_zone::time_zone(const detail::string_t& s)
{
using detail::read_name;
using detail::read_signed_time;
using detail::throw_invalid;
auto i = read_name(s, 0, std_abbrev_);
i = read_signed_time(s, i, offset_);
offset_ = -offset_;
if (i != s.size())
{
i = read_name(s, i, dst_abbrev_);
if (i != s.size())
{
if (s[i] != ',')
{
i = read_signed_time(s, i, save_);
save_ = -save_ - offset_;
}
if (i != s.size())
{
if (s[i] != ',')
throw_invalid(s, i, "Expecting end of string or ',' to start rule");
++i;
i = read_date(s, i, start_rule_);
if (i == s.size() || s[i] != ',')
throw_invalid(s, i, "Expecting ',' and then the ending rule");
++i;
i = read_date(s, i, end_rule_);
if (i != s.size())
throw_invalid(s, i, "Found unexpected trailing characters");
}
}
}
}
template <class Duration>
date::sys_info
time_zone::get_info(date::sys_time<Duration> st) const
{
using date::sys_info;
using date::year_month_day;
using date::sys_days;
using date::floor;
using date::ceil;
using date::days;
using date::year;
using date::January;
using date::December;
using date::last;
using std::chrono::minutes;
sys_info r{};
r.offset = offset_;
if (start_rule_.ok())
{
auto y = year_month_day{floor<days>(st)}.year();
auto start = get_start(y);
auto end = get_end(y);
if (start <= end) // (northern hemisphere)
{
if (start <= st && st < end)
{
r.begin = start;
r.end = end;
r.offset += save_;
r.save = ceil<minutes>(save_);
r.abbrev = dst_abbrev_;
}
else if (st < start)
{
r.begin = get_prev_end(y);
r.end = start;
r.abbrev = std_abbrev_;
}
else // st >= end
{
r.begin = end;
r.end = get_next_start(y);
r.abbrev = std_abbrev_;
}
}
else // end < start (southern hemisphere)
{
if (end <= st && st < start)
{
r.begin = end;
r.end = start;
r.abbrev = std_abbrev_;
}
else if (st < end)
{
r.begin = get_prev_start(y);
r.end = end;
r.offset += save_;
r.save = ceil<minutes>(save_);
r.abbrev = dst_abbrev_;
}
else // st >= start
{
r.begin = start;
r.end = get_next_end(y);
r.offset += save_;
r.save = ceil<minutes>(save_);
r.abbrev = dst_abbrev_;
}
}
}
else
r = contant_offset();
return r;
}
template <class Duration>
date::local_info
time_zone::get_info(date::local_time<Duration> tp) const
{
using date::local_info;
using date::year_month_day;
using date::days;
using date::sys_days;
using date::sys_seconds;
using date::year;
using date::ceil;
using date::January;
using date::December;
using date::last;
using std::chrono::seconds;
using std::chrono::minutes;
local_info r{};
using date::floor;
if (start_rule_.ok())
{
auto y = year_month_day{floor<days>(tp)}.year();
auto start = get_start(y);
auto end = get_end(y);
auto utcs = sys_seconds{floor<seconds>(tp - offset_).time_since_epoch()};
auto utcd = sys_seconds{floor<seconds>(tp - (offset_ + save_)).time_since_epoch()};
auto northern = start <= end;
if ((utcs < start) != (utcd < start))
{
if (northern)
r.first.begin = get_prev_end(y);
else
r.first.begin = end;
r.first.end = start;
r.first.offset = offset_;
r.first.abbrev = std_abbrev_;
r.second.begin = start;
if (northern)
r.second.end = end;
else
r.second.end = get_next_end(y);
r.second.abbrev = dst_abbrev_;
r.second.offset = offset_ + save_;
r.second.save = ceil<minutes>(save_);
r.result = save_ > seconds{0} ? local_info::nonexistent
: local_info::ambiguous;
}
else if ((utcs < end) != (utcd < end))
{
if (northern)
r.first.begin = start;
else
r.first.begin = get_prev_start(y);
r.first.end = end;
r.first.offset = offset_ + save_;
r.first.save = ceil<minutes>(save_);
r.first.abbrev = dst_abbrev_;
r.second.begin = end;
if (northern)
r.second.end = get_next_start(y);
else
r.second.end = start;
r.second.abbrev = std_abbrev_;
r.second.offset = offset_;
r.result = save_ > seconds{0} ? local_info::ambiguous
: local_info::nonexistent;
}
else
r.first = get_info(utcs);
}
else
r.first = contant_offset();
return r;
}
template <class Duration>
date::sys_time<typename std::common_type<Duration, std::chrono::seconds>::type>
time_zone::to_sys(date::local_time<Duration> tp) const
{
using date::local_info;
using date::sys_time;
using date::ambiguous_local_time;
using date::nonexistent_local_time;
auto i = get_info(tp);
if (i.result == local_info::nonexistent)
throw nonexistent_local_time(tp, i);
else if (i.result == local_info::ambiguous)
throw ambiguous_local_time(tp, i);
return sys_time<Duration>{tp.time_since_epoch()} - i.first.offset;
}
template <class Duration>
date::sys_time<typename std::common_type<Duration, std::chrono::seconds>::type>
time_zone::to_sys(date::local_time<Duration> tp, date::choose z) const
{
using date::local_info;
using date::sys_time;
using date::choose;
auto i = get_info(tp);
if (i.result == local_info::nonexistent)
{
return i.first.end;
}
else if (i.result == local_info::ambiguous)
{
if (z == choose::latest)
return sys_time<Duration>{tp.time_since_epoch()} - i.second.offset;
}
return sys_time<Duration>{tp.time_since_epoch()} - i.first.offset;
}
template <class Duration>
date::local_time<typename std::common_type<Duration, std::chrono::seconds>::type>
time_zone::to_local(date::sys_time<Duration> tp) const
{
using date::local_time;
using std::chrono::seconds;
using LT = local_time<typename std::common_type<Duration, seconds>::type>;
auto i = get_info(tp);
return LT{(tp + i.offset).time_since_epoch()};
}
inline
std::ostream&
operator<<(std::ostream& os, const time_zone& z)
{
using date::operator<<;
os << '{';
os << z.std_abbrev_ << ", " << z.dst_abbrev_ << date::format(", %T, ", z.offset_)
<< date::format("%T, [", z.save_) << z.start_rule_ << ", " << z.end_rule_ << ")}";
return os;
}
inline
std::string
time_zone::name() const
{
using namespace date;
using namespace std::chrono;
auto nm = std_abbrev_;
auto print_offset = [](seconds off)
{
std::string nm;
hh_mm_ss<seconds> offset{-off};
if (offset.is_negative())
nm += '-';
nm += std::to_string(offset.hours().count());
if (offset.minutes() != minutes{0} || offset.seconds() != seconds{0})
{
nm += ':';
if (offset.minutes() < minutes{10})
nm += '0';
nm += std::to_string(offset.minutes().count());
if (offset.seconds() != seconds{0})
{
nm += ':';
if (offset.seconds() < seconds{10})
nm += '0';
nm += std::to_string(offset.seconds().count());
}
}
return nm;
};
nm += print_offset(offset_);
if (!dst_abbrev_.empty())
{
nm += dst_abbrev_;
if (save_ != hours{1})
nm += print_offset(offset_+save_);
if (start_rule_.ok())
{
nm += ',';
nm += start_rule_.to_string();
nm += ',';
nm += end_rule_.to_string();
}
}
return nm;
}
inline
bool
operator==(const time_zone& x, const time_zone& y)
{
return x.std_abbrev_ == y.std_abbrev_ &&
x.dst_abbrev_ == y. dst_abbrev_ &&
x.offset_ == y.offset_ &&
x.save_ == y.save_ &&
x.start_rule_ == y.start_rule_ &&
x.end_rule_ == y.end_rule_;
}
inline
bool
operator!=(const time_zone& x, const time_zone& y)
{
return !(x == y);
}
namespace detail
{
inline
void
throw_invalid(const string_t& s, unsigned i, const string_t& message)
{
throw std::runtime_error(std::string("Invalid time_zone initializer.\n") +
std::string(message) + ":\n" +
std::string(s) + '\n' +
"\x1b[1;32m" +
std::string(i, '~') + '^' +
std::string(i < s.size() ? s.size()-i-1 : 0, '~') +
"\x1b[0m");
}
inline
unsigned
read_date(const string_t& s, unsigned i, rule& r)
{
using date::month;
using date::weekday;
if (i == s.size())
throw_invalid(s, i, "Expected rule but found end of string");
if (s[i] == 'J')
{
++i;
unsigned n;
i = read_unsigned(s, i, 3, n, "Expected to find the Julian day [1, 365]");
r.mode_ = rule::J;
r.n_ = n;
}
else if (s[i] == 'M')
{
++i;
unsigned m;
i = read_unsigned(s, i, 2, m, "Expected to find month [1, 12]");
if (i == s.size() || s[i] != '.')
throw_invalid(s, i, "Expected '.' after month");
++i;
unsigned n;
i = read_unsigned(s, i, 1, n, "Expected to find week number [1, 5]");
if (i == s.size() || s[i] != '.')
throw_invalid(s, i, "Expected '.' after weekday index");
++i;
unsigned wd;
i = read_unsigned(s, i, 1, wd, "Expected to find day of week [0, 6]");
r.mode_ = rule::M;
r.m_ = month{m};
r.wd_ = weekday{wd};
r.n_ = n;
}
else if (std::isdigit(s[i]))
{
unsigned n;
i = read_unsigned(s, i, 3, n);
r.mode_ = rule::N;
r.n_ = n;
}
else
throw_invalid(s, i, "Expected 'J', 'M', or a digit to start rule");
if (i != s.size() && s[i] == '/')
{
++i;
std::chrono::seconds t;
i = read_unsigned_time(s, i, t);
r.time_ = t;
}
return i;
}
inline
unsigned
read_name(const string_t& s, unsigned i, std::string& name)
{
if (i == s.size())
throw_invalid(s, i, "Expected a name but found end of string");
if (s[i] == '<')
{
++i;
while (true)
{
if (i == s.size())
throw_invalid(s, i,
"Expected to find closing '>', but found end of string");
if (s[i] == '>')
break;
name.push_back(s[i]);
++i;
}
++i;
}
else
{
while (i != s.size() && std::isalpha(s[i]))
{
name.push_back(s[i]);
++i;
}
}
if (name.size() < 3)
throw_invalid(s, i, "Found name to be shorter than 3 characters");
return i;
}
inline
unsigned
read_signed_time(const string_t& s, unsigned i,
std::chrono::seconds& t)
{
if (i == s.size())
throw_invalid(s, i, "Expected to read signed time, but found end of string");
bool negative = false;
if (s[i] == '-')
{
negative = true;
++i;
}
else if (s[i] == '+')
++i;
i = read_unsigned_time(s, i, t);
if (negative)
t = -t;
return i;
}
inline
unsigned
read_unsigned_time(const string_t& s, unsigned i, std::chrono::seconds& t)
{
using std::chrono::seconds;
using std::chrono::minutes;
using std::chrono::hours;
if (i == s.size())
throw_invalid(s, i, "Expected to read unsigned time, but found end of string");
unsigned x;
i = read_unsigned(s, i, 2, x, "Expected to find hours [0, 24]");
t = hours{x};
if (i != s.size() && s[i] == ':')
{
++i;
i = read_unsigned(s, i, 2, x, "Expected to find minutes [0, 59]");
t += minutes{x};
if (i != s.size() && s[i] == ':')
{
++i;
i = read_unsigned(s, i, 2, x, "Expected to find seconds [0, 59]");
t += seconds{x};
}
}
return i;
}
inline
unsigned
read_unsigned(const string_t& s, unsigned i, unsigned limit, unsigned& u,
const string_t& message)
{
if (i == s.size() || !std::isdigit(s[i]))
throw_invalid(s, i, message);
u = static_cast<unsigned>(s[i] - '0');
unsigned count = 1;
for (++i; count < limit && i != s.size() && std::isdigit(s[i]); ++i, ++count)
u = u * 10 + static_cast<unsigned>(s[i] - '0');
return i;
}
} // namespace detail
} // namespace Posix
namespace date
{
template <>
struct zoned_traits<Posix::time_zone>
{
#if HAS_STRING_VIEW
static
Posix::time_zone
locate_zone(std::string_view name)
{
return Posix::time_zone{name};
}
#else // !HAS_STRING_VIEW
static
Posix::time_zone
locate_zone(const std::string& name)
{
return Posix::time_zone{name};
}
static
Posix::time_zone
locate_zone(const char* name)
{
return Posix::time_zone{name};
}
#endif // !HAS_STRING_VIEW
};
} // namespace date
#endif // PTZ_H

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#ifndef TZ_PRIVATE_H
#define TZ_PRIVATE_H
// The MIT License (MIT)
//
// Copyright (c) 2015, 2016 Howard Hinnant
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// Our apologies. When the previous paragraph was written, lowercase had not yet
// been invented (that would involve another several millennia of evolution).
// We did not mean to shout.
#if !defined(_MSC_VER) || (_MSC_VER >= 1900)
#include "tz.h"
#else
#include "date.h"
#include <vector>
#endif
namespace date
{
namespace detail
{
#if !USE_OS_TZDB
enum class tz {utc, local, standard};
//forward declare to avoid warnings in gcc 6.2
class MonthDayTime;
std::istream& operator>>(std::istream& is, MonthDayTime& x);
std::ostream& operator<<(std::ostream& os, const MonthDayTime& x);
class MonthDayTime
{
private:
struct pair
{
#if defined(_MSC_VER) && (_MSC_VER < 1900)
pair() : month_day_(date::jan / 1), weekday_(0U) {}
pair(const date::month_day& month_day, const date::weekday& weekday)
: month_day_(month_day), weekday_(weekday) {}
#endif
date::month_day month_day_;
date::weekday weekday_;
};
enum Type {month_day, month_last_dow, lteq, gteq};
Type type_{month_day};
#if !defined(_MSC_VER) || (_MSC_VER >= 1900)
union U
#else
struct U
#endif
{
date::month_day month_day_;
date::month_weekday_last month_weekday_last_;
pair month_day_weekday_;
#if !defined(_MSC_VER) || (_MSC_VER >= 1900)
U() : month_day_{date::jan/1} {}
#else
U() :
month_day_(date::jan/1),
month_weekday_last_(date::month(0U), date::weekday_last(date::weekday(0U)))
{}
#endif // !defined(_MSC_VER) || (_MSC_VER >= 1900)
U& operator=(const date::month_day& x);
U& operator=(const date::month_weekday_last& x);
U& operator=(const pair& x);
} u;
std::chrono::hours h_{0};
std::chrono::minutes m_{0};
std::chrono::seconds s_{0};
tz zone_{tz::local};
public:
MonthDayTime() = default;
MonthDayTime(local_seconds tp, tz timezone);
MonthDayTime(const date::month_day& md, tz timezone);
date::day day() const;
date::month month() const;
tz zone() const {return zone_;}
void canonicalize(date::year y);
sys_seconds
to_sys(date::year y, std::chrono::seconds offset, std::chrono::seconds save) const;
sys_days to_sys_days(date::year y) const;
sys_seconds to_time_point(date::year y) const;
int compare(date::year y, const MonthDayTime& x, date::year yx,
std::chrono::seconds offset, std::chrono::minutes prev_save) const;
friend std::istream& operator>>(std::istream& is, MonthDayTime& x);
friend std::ostream& operator<<(std::ostream& os, const MonthDayTime& x);
};
// A Rule specifies one or more set of datetimes without using an offset.
// Multiple dates are specified with multiple years. The years in effect
// go from starting_year_ to ending_year_, inclusive. starting_year_ <=
// ending_year_. save_ is in effect for times from the specified time
// onward, including the specified time. When the specified time is
// local, it uses the save_ from the chronologically previous Rule, or if
// there is none, 0.
//forward declare to avoid warnings in gcc 6.2
class Rule;
bool operator==(const Rule& x, const Rule& y);
bool operator<(const Rule& x, const Rule& y);
bool operator==(const Rule& x, const date::year& y);
bool operator<(const Rule& x, const date::year& y);
bool operator==(const date::year& x, const Rule& y);
bool operator<(const date::year& x, const Rule& y);
bool operator==(const Rule& x, const std::string& y);
bool operator<(const Rule& x, const std::string& y);
bool operator==(const std::string& x, const Rule& y);
bool operator<(const std::string& x, const Rule& y);
std::ostream& operator<<(std::ostream& os, const Rule& r);
class Rule
{
private:
std::string name_;
date::year starting_year_{0};
date::year ending_year_{0};
MonthDayTime starting_at_;
std::chrono::minutes save_{0};
std::string abbrev_;
public:
Rule() = default;
explicit Rule(const std::string& s);
Rule(const Rule& r, date::year starting_year, date::year ending_year);
const std::string& name() const {return name_;}
const std::string& abbrev() const {return abbrev_;}
const MonthDayTime& mdt() const {return starting_at_;}
const date::year& starting_year() const {return starting_year_;}
const date::year& ending_year() const {return ending_year_;}
const std::chrono::minutes& save() const {return save_;}
static void split_overlaps(std::vector<Rule>& rules);
friend bool operator==(const Rule& x, const Rule& y);
friend bool operator<(const Rule& x, const Rule& y);
friend bool operator==(const Rule& x, const date::year& y);
friend bool operator<(const Rule& x, const date::year& y);
friend bool operator==(const date::year& x, const Rule& y);
friend bool operator<(const date::year& x, const Rule& y);
friend bool operator==(const Rule& x, const std::string& y);
friend bool operator<(const Rule& x, const std::string& y);
friend bool operator==(const std::string& x, const Rule& y);
friend bool operator<(const std::string& x, const Rule& y);
friend std::ostream& operator<<(std::ostream& os, const Rule& r);
private:
date::day day() const;
date::month month() const;
static void split_overlaps(std::vector<Rule>& rules, std::size_t i, std::size_t& e);
static bool overlaps(const Rule& x, const Rule& y);
static void split(std::vector<Rule>& rules, std::size_t i, std::size_t k,
std::size_t& e);
};
inline bool operator!=(const Rule& x, const Rule& y) {return !(x == y);}
inline bool operator> (const Rule& x, const Rule& y) {return y < x;}
inline bool operator<=(const Rule& x, const Rule& y) {return !(y < x);}
inline bool operator>=(const Rule& x, const Rule& y) {return !(x < y);}
inline bool operator!=(const Rule& x, const date::year& y) {return !(x == y);}
inline bool operator> (const Rule& x, const date::year& y) {return y < x;}
inline bool operator<=(const Rule& x, const date::year& y) {return !(y < x);}
inline bool operator>=(const Rule& x, const date::year& y) {return !(x < y);}
inline bool operator!=(const date::year& x, const Rule& y) {return !(x == y);}
inline bool operator> (const date::year& x, const Rule& y) {return y < x;}
inline bool operator<=(const date::year& x, const Rule& y) {return !(y < x);}
inline bool operator>=(const date::year& x, const Rule& y) {return !(x < y);}
inline bool operator!=(const Rule& x, const std::string& y) {return !(x == y);}
inline bool operator> (const Rule& x, const std::string& y) {return y < x;}
inline bool operator<=(const Rule& x, const std::string& y) {return !(y < x);}
inline bool operator>=(const Rule& x, const std::string& y) {return !(x < y);}
inline bool operator!=(const std::string& x, const Rule& y) {return !(x == y);}
inline bool operator> (const std::string& x, const Rule& y) {return y < x;}
inline bool operator<=(const std::string& x, const Rule& y) {return !(y < x);}
inline bool operator>=(const std::string& x, const Rule& y) {return !(x < y);}
struct zonelet
{
enum tag {has_rule, has_save, is_empty};
std::chrono::seconds gmtoff_;
tag tag_ = has_rule;
#if !defined(_MSC_VER) || (_MSC_VER >= 1900)
union U
#else
struct U
#endif
{
std::string rule_;
std::chrono::minutes save_;
~U() {}
U() {}
U(const U&) {}
U& operator=(const U&) = delete;
} u;
std::string format_;
date::year until_year_{0};
MonthDayTime until_date_;
sys_seconds until_utc_;
local_seconds until_std_;
local_seconds until_loc_;
std::chrono::minutes initial_save_{0};
std::string initial_abbrev_;
std::pair<const Rule*, date::year> first_rule_{nullptr, date::year::min()};
std::pair<const Rule*, date::year> last_rule_{nullptr, date::year::max()};
~zonelet();
zonelet();
zonelet(const zonelet& i);
zonelet& operator=(const zonelet&) = delete;
};
#else // USE_OS_TZDB
struct ttinfo
{
std::int32_t tt_gmtoff;
unsigned char tt_isdst;
unsigned char tt_abbrind;
unsigned char pad[2];
};
static_assert(sizeof(ttinfo) == 8, "");
struct expanded_ttinfo
{
std::chrono::seconds offset;
std::string abbrev;
bool is_dst;
};
struct transition
{
sys_seconds timepoint;
const expanded_ttinfo* info;
transition(sys_seconds tp, const expanded_ttinfo* i = nullptr)
: timepoint(tp)
, info(i)
{}
friend
std::ostream&
operator<<(std::ostream& os, const transition& t)
{
using date::operator<<;
os << t.timepoint << "Z ";
if (t.info->offset >= std::chrono::seconds{0})
os << '+';
os << make_time(t.info->offset);
if (t.info->is_dst > 0)
os << " daylight ";
else
os << " standard ";
os << t.info->abbrev;
return os;
}
};
#endif // USE_OS_TZDB
} // namespace detail
} // namespace date
#if defined(_MSC_VER) && (_MSC_VER < 1900)
#include "tz.h"
#endif
#endif // TZ_PRIVATE_H

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//
// The MIT License (MIT)
//
// Copyright (c) 2016 Alexander Kormanovsky
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
#include "date/ios.h"
#if TARGET_OS_IPHONE
#include <Foundation/Foundation.h>
#include <fstream>
#include <zlib.h>
#include <sys/stat.h>
#ifndef TAR_DEBUG
# define TAR_DEBUG 0
#endif
#define INTERNAL_DIR "Library"
#define TZDATA_DIR "tzdata"
#define TARGZ_EXTENSION "tar.gz"
#define TAR_BLOCK_SIZE 512
#define TAR_TYPE_POSITION 156
#define TAR_NAME_POSITION 0
#define TAR_NAME_SIZE 100
#define TAR_SIZE_POSITION 124
#define TAR_SIZE_SIZE 12
namespace date
{
namespace iOSUtils
{
struct TarInfo
{
char objType;
std::string objName;
size_t realContentSize; // writable size without padding zeroes
size_t blocksContentSize; // adjusted size to 512 bytes blocks
bool success;
};
std::string convertCFStringRefPathToCStringPath(CFStringRef ref);
bool extractTzdata(CFURLRef homeUrl, CFURLRef archiveUrl, std::string destPath);
TarInfo getTarObjectInfo(std::ifstream &readStream);
std::string getTarObject(std::ifstream &readStream, int64_t size);
bool writeFile(const std::string &tzdataPath, const std::string &fileName,
const std::string &data, size_t realContentSize);
std::string
get_current_timezone()
{
CFTimeZoneRef tzRef = CFTimeZoneCopySystem();
CFStringRef tzNameRef = CFTimeZoneGetName(tzRef);
CFIndex bufferSize = CFStringGetLength(tzNameRef) + 1;
char buffer[bufferSize];
if (CFStringGetCString(tzNameRef, buffer, bufferSize, kCFStringEncodingUTF8))
{
CFRelease(tzRef);
return std::string(buffer);
}
CFRelease(tzRef);
return "";
}
std::string
get_tzdata_path()
{
CFURLRef homeUrlRef = CFCopyHomeDirectoryURL();
CFStringRef homePath = CFURLCopyPath(homeUrlRef);
std::string path(std::string(convertCFStringRefPathToCStringPath(homePath)) +
INTERNAL_DIR + "/" + TZDATA_DIR);
std::string result_path(std::string(convertCFStringRefPathToCStringPath(homePath)) +
INTERNAL_DIR);
if (access(path.c_str(), F_OK) == 0)
{
#if TAR_DEBUG
printf("tzdata dir exists\n");
#endif
CFRelease(homeUrlRef);
CFRelease(homePath);
return result_path;
}
CFBundleRef mainBundle = CFBundleGetMainBundle();
CFArrayRef paths = CFBundleCopyResourceURLsOfType(mainBundle, CFSTR(TARGZ_EXTENSION),
NULL);
if (CFArrayGetCount(paths) != 0)
{
// get archive path, assume there is no other tar.gz in bundle
CFURLRef archiveUrl = static_cast<CFURLRef>(CFArrayGetValueAtIndex(paths, 0));
CFStringRef archiveName = CFURLCopyPath(archiveUrl);
archiveUrl = CFBundleCopyResourceURL(mainBundle, archiveName, NULL, NULL);
extractTzdata(homeUrlRef, archiveUrl, path);
CFRelease(archiveUrl);
CFRelease(archiveName);
}
CFRelease(homeUrlRef);
CFRelease(homePath);
CFRelease(paths);
return result_path;
}
std::string
convertCFStringRefPathToCStringPath(CFStringRef ref)
{
CFIndex bufferSize = CFStringGetMaximumSizeOfFileSystemRepresentation(ref);
char *buffer = new char[bufferSize];
CFStringGetFileSystemRepresentation(ref, buffer, bufferSize);
auto result = std::string(buffer);
delete[] buffer;
return result;
}
bool
extractTzdata(CFURLRef homeUrl, CFURLRef archiveUrl, std::string destPath)
{
std::string TAR_TMP_PATH = "/tmp.tar";
CFStringRef homeStringRef = CFURLCopyPath(homeUrl);
auto homePath = convertCFStringRefPathToCStringPath(homeStringRef);
CFRelease(homeStringRef);
CFStringRef archiveStringRef = CFURLCopyPath(archiveUrl);
auto archivePath = convertCFStringRefPathToCStringPath(archiveStringRef);
CFRelease(archiveStringRef);
// create Library path
auto libraryPath = homePath + INTERNAL_DIR;
// create tzdata path
auto tzdataPath = libraryPath + "/" + TZDATA_DIR;
// -- replace %20 with " "
const std::string search = "%20";
const std::string replacement = " ";
size_t pos = 0;
while ((pos = archivePath.find(search, pos)) != std::string::npos) {
archivePath.replace(pos, search.length(), replacement);
pos += replacement.length();
}
gzFile tarFile = gzopen(archivePath.c_str(), "rb");
// create tar unpacking path
auto tarPath = libraryPath + TAR_TMP_PATH;
// create tzdata directory
mkdir(destPath.c_str(), S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
// ======= extract tar ========
std::ofstream os(tarPath.c_str(), std::ofstream::out | std::ofstream::app);
unsigned int bufferLength = 1024 * 256; // 256Kb
unsigned char *buffer = (unsigned char *)malloc(bufferLength);
bool success = true;
while (true)
{
int readBytes = gzread(tarFile, buffer, bufferLength);
if (readBytes > 0)
{
os.write((char *) &buffer[0], readBytes);
}
else
if (readBytes == 0)
{
break;
}
else
if (readBytes == -1)
{
printf("decompression failed\n");
success = false;
break;
}
else
{
printf("unexpected zlib state\n");
success = false;
break;
}
}
os.close();
free(buffer);
gzclose(tarFile);
if (!success)
{
remove(tarPath.c_str());
return false;
}
// ======== extract files =========
uint64_t location = 0; // Position in the file
// get file size
struct stat stat_buf;
int res = stat(tarPath.c_str(), &stat_buf);
if (res != 0)
{
printf("error file size\n");
remove(tarPath.c_str());
return false;
}
int64_t tarSize = stat_buf.st_size;
// create read stream
std::ifstream is(tarPath.c_str(), std::ifstream::in | std::ifstream::binary);
// process files
while (location < tarSize)
{
TarInfo info = getTarObjectInfo(is);
if (!info.success || info.realContentSize == 0)
{
break; // something wrong or all files are read
}
switch (info.objType)
{
case '0': // file
case '\0': //
{
std::string obj = getTarObject(is, info.blocksContentSize);
#if TAR_DEBUG
size += info.realContentSize;
printf("#%i %s file size %lld written total %ld from %lld\n", ++count,
info.objName.c_str(), info.realContentSize, size, tarSize);
#endif
writeFile(tzdataPath, info.objName, obj, info.realContentSize);
location += info.blocksContentSize;
break;
}
}
}
remove(tarPath.c_str());
return true;
}
TarInfo
getTarObjectInfo(std::ifstream &readStream)
{
int64_t length = TAR_BLOCK_SIZE;
char buffer[length];
char type;
char name[TAR_NAME_SIZE + 1];
char sizeBuf[TAR_SIZE_SIZE + 1];
readStream.read(buffer, length);
memcpy(&type, &buffer[TAR_TYPE_POSITION], 1);
memset(&name, '\0', TAR_NAME_SIZE + 1);
memcpy(&name, &buffer[TAR_NAME_POSITION], TAR_NAME_SIZE);
memset(&sizeBuf, '\0', TAR_SIZE_SIZE + 1);
memcpy(&sizeBuf, &buffer[TAR_SIZE_POSITION], TAR_SIZE_SIZE);
size_t realSize = strtol(sizeBuf, NULL, 8);
size_t blocksSize = realSize + (TAR_BLOCK_SIZE - (realSize % TAR_BLOCK_SIZE));
return {type, std::string(name), realSize, blocksSize, true};
}
std::string
getTarObject(std::ifstream &readStream, int64_t size)
{
char buffer[size];
readStream.read(buffer, size);
return std::string(buffer);
}
bool
writeFile(const std::string &tzdataPath, const std::string &fileName, const std::string &data,
size_t realContentSize)
{
std::ofstream os(tzdataPath + "/" + fileName, std::ofstream::out | std::ofstream::binary);
if (!os) {
return false;
}
// trim empty space
char trimmedData[realContentSize + 1];
memset(&trimmedData, '\0', realContentSize);
memcpy(&trimmedData, data.c_str(), realContentSize);
// write
os.write(trimmedData, realContentSize);
os.close();
return true;
}
} // namespace iOSUtils
} // namespace date
#endif // TARGET_OS_IPHONE

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third_party/date/test_fail.sh vendored Executable file
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#!/bin/bash
echo $1
eval $1
if [ $? -eq 0 ]; then
exit 0;
fi
exit 1;