mirror of
https://github.com/open-source-parsers/jsoncpp.git
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176 lines
6.9 KiB
Plaintext
176 lines
6.9 KiB
Plaintext
New in SVN
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----------
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* Updated the type system's behavior, in order to better support backwards
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compatibility with code that was written before 64-bit integer support was
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introduced. Here's how it works now:
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* isInt, isInt64, isUInt, and isUInt64 return true if and only if the
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value can be exactly represented as that type. In particular, a value
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constructed with a double like 17.0 will now return true for all of
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these methods.
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* isDouble and isFloat now return true for all numeric values, since all
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numeric values can be converted to a double or float without
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truncation. Note however that the conversion may not be exact -- for
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example, doubles cannot exactly represent all integers above 2^53 + 1.
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* isBool, isNull, isString, isArray, and isObject now return true if and
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only if the value is of that type.
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* isConvertibleTo(fooValue) indicates that it is safe to call asFoo.
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(For each type foo, isFoo always implies isConvertibleTo(fooValue).)
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asFoo returns an approximate or exact representation as appropriate.
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For example, a double value may be truncated when asInt is called.
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* For backwards compatibility with old code, isConvertibleTo(intValue)
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may return false even if type() == intValue. This is because the value
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may have been constructed with a 64-bit integer larger than maxInt,
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and calling asInt() would cause an exception. If you're writing new
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code, use isInt64 to find out whether the value is exactly
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representable using an Int64, or asDouble() combined with minInt64 and
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maxInt64 to figure out whether it is approximately representable.
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* Value
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- Patch #10: BOOST_FOREACH compatibility. Made Json::iterator more
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standard compliant, added missing iterator_category and value_type
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typedefs (contribued by Robert A. Iannucci).
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* Compilation
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- New CMake based build system. Based in part on contribution from
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Igor Okulist and Damien Buhl (Patch #14).
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- New header json/version.h now contains version number macros
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(JSONCPP_VERSION_MAJOR, JSONCPP_VERSION_MINOR, JSONCPP_VERSION_PATCH
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and JSONCPP_VERSION_HEXA).
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- Patch #11: added missing JSON_API on some classes causing link issues
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when building as a dynamic library on Windows
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(contributed by Francis Bolduc).
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- Visual Studio DLL: suppressed warning "C4251: <data member>: <type>
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needs to have dll-interface to be used by..." via pragma push/pop
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in json-cpp headers.
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- Added Travis CI intregration: https://travis-ci.org/blep/jsoncpp-mirror
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* Bug fixes
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- Patch #15: Copy constructor does not initialize allocated_ for stringValue
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(contributed by rmongia).
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- Patch #16: Missing field copy in Json::Value::iterator causing infinite
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loop when using experimental internal map (#define JSON_VALUE_USE_INTERNAL_MAP)
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(contributed by Ming-Lin Kao).
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New in JsonCpp 0.6.0:
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---------------------
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* Compilation
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- LD_LIBRARY_PATH and LIBRARY_PATH environment variables are now
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propagated to the build environment as this is required for some
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compiler installation.
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- Added support for Microsoft Visual Studio 2008 (bug #2930462):
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The platform "msvc90" has been added.
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Notes: you need to setup the environment by running vcvars32.bat
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(e.g. MSVC 2008 command prompt in start menu) before running scons.
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- Added support for amalgamated source and header generation (a la sqlite).
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Refer to README.md section "Generating amalgamated source and header"
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for detail.
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* Value
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- Removed experimental ValueAllocator, it caused static
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initialization/destruction order issues (bug #2934500).
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The DefaultValueAllocator has been inlined in code.
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- Added support for 64 bits integer:
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Types Json::Int64 and Json::UInt64 have been added. They are aliased
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to 64 bits integers on system that support them (based on __int64 on
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Microsoft Visual Studio platform, and long long on other platforms).
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Types Json::LargestInt and Json::LargestUInt have been added. They are
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aliased to the largest integer type supported:
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either Json::Int/Json::UInt or Json::Int64/Json::UInt64 respectively.
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Json::Value::asInt() and Json::Value::asUInt() still returns plain
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"int" based types, but asserts if an attempt is made to retrieve
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a 64 bits value that can not represented as the return type.
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Json::Value::asInt64() and Json::Value::asUInt64() have been added
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to obtain the 64 bits integer value.
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Json::Value::asLargestInt() and Json::Value::asLargestUInt() returns
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the integer as a LargestInt/LargestUInt respectively. Those functions
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functions are typically used when implementing writer.
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The reader attempts to read number as 64 bits integer, and fall back
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to reading a double if the number is not in the range of 64 bits
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integer.
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Warning: Json::Value::asInt() and Json::Value::asUInt() now returns
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long long. This changes break code that was passing the return value
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to *printf() function.
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Support for 64 bits integer can be disabled by defining the macro
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JSON_NO_INT64 (uncomment it in json/config.h for example), though
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it should have no impact on existing usage.
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- The type Json::ArrayIndex is used for indexes of a JSON value array. It
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is an unsigned int (typically 32 bits).
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- Array index can be passed as int to operator[], allowing use of literal:
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Json::Value array;
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array.append( 1234 );
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int value = array[0].asInt(); // did not compile previously
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- Added float Json::Value::asFloat() to obtain a floating point value as a
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float (avoid lost of precision warning caused by used of asDouble()
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to initialize a float).
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* Reader
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- Renamed Reader::getFormatedErrorMessages() to getFormattedErrorMessages.
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Bug #3023708 (Formatted has 2 't'). The old member function is deprecated
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but still present for backward compatibility.
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* Tests
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- Added test to ensure that the escape sequence "\/" is corrected handled
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by the parser.
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* Bug fixes
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- Bug #3139677: JSON [1 2 3] was incorrectly parsed as [1, 3]. Error is now
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correctly detected.
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- Bug #3139678: stack buffer overflow when parsing a double with a
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length of 32 characters.
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- Fixed Value::operator <= implementation (had the semantic of operator >=).
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Found when adding unit tests for comparison operators.
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- Value::compare() is now const and has an actual implementation with
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unit tests.
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- Bug #2407932: strpbrk() can fail for NULL pointer.
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- Bug #3306345: Fixed minor typo in Path::resolve().
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- Bug #3314841/#3306896: errors in amalgamate.py
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- Fixed some Coverity warnings and line-endings.
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* License
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- See file LICENSE for details. Basically JsonCpp is now licensed under
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MIT license, or public domain if desired and recognized in your jurisdiction.
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Thanks to Stephan G. Beal [http://wanderinghorse.net/home/stephan/]) who
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helped figuring out the solution to the public domain issue.
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