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Fix conversion warnings/errors

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See #411.
  http://paste.debian.net/378673/
This commit is contained in:
Christopher Dunn 2016-02-06 09:25:20 -06:00
parent baefec773c
commit d4513fcf45
8 changed files with 63 additions and 56 deletions
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4
CMakeLists.txt
View File

@ -103,10 +103,10 @@ endif()
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
# using regular Clang or AppleClang
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Wconversion -Wshadow -Wno-sign-conversion")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Wconversion -Wshadow -Wno-sign-conversion -Werror=conversion")
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
# using GCC
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Wconversion -Wshadow -Wextra")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Wconversion -Wshadow -Wextra -Werror=conversion")
# not yet ready for -Wsign-conversion
if (JSONCPP_WITH_STRICT_ISO AND NOT JSONCPP_WITH_WARNING_AS_ERROR)

4
include/json/reader.h
View File

@ -42,8 +42,8 @@ public:
*
*/
struct StructuredError {
size_t offset_start;
size_t offset_limit;
ptrdiff_t offset_start;
ptrdiff_t offset_limit;
std::string message;
};

12
include/json/value.h
View File

@ -554,10 +554,10 @@ Json::Value obj_value(Json::objectValue); // {}
// Accessors for the [start, limit) range of bytes within the JSON text from
// which this value was parsed, if any.
void setOffsetStart(size_t start);
void setOffsetLimit(size_t limit);
size_t getOffsetStart() const;
size_t getOffsetLimit() const;
void setOffsetStart(ptrdiff_t start);
void setOffsetLimit(ptrdiff_t limit);
ptrdiff_t getOffsetStart() const;
ptrdiff_t getOffsetLimit() const;
private:
void initBasic(ValueType type, bool allocated = false);
@ -598,8 +598,8 @@ private:
// [start, limit) byte offsets in the source JSON text from which this Value
// was extracted.
size_t start_;
size_t limit_;
ptrdiff_t start_;
ptrdiff_t limit_;
};
/** \brief Experimental and untested: represents an element of the "path" to

4
include/json/writer.h
View File

@ -238,8 +238,8 @@ private:
ChildValues childValues_;
std::string document_;
std::string indentString_;
int rightMargin_;
int indentSize_;
unsigned int rightMargin_;
unsigned int indentSize_;
bool addChildValues_;
};

9
src/jsontestrunner/main.cpp
View File

@ -57,12 +57,13 @@ static std::string readInputTestFile(const char* path) {
if (!file)
return std::string("");
fseek(file, 0, SEEK_END);
long size = ftell(file);
long const size = ftell(file);
unsigned long const usize = static_cast<unsigned long const>(size);
fseek(file, 0, SEEK_SET);
std::string text;
char* buffer = new char[size + 1];
buffer[size] = 0;
if (fread(buffer, 1, size, file) == (unsigned long)size)
if (fread(buffer, 1, usize, file) == usize)
text = buffer;
fclose(file);
delete[] buffer;
@ -104,8 +105,8 @@ printValueTree(FILE* fout, Json::Value& value, const std::string& path = ".") {
break;
case Json::arrayValue: {
fprintf(fout, "%s=[]\n", path.c_str());
int size = value.size();
for (int index = 0; index < size; ++index) {
Json::ArrayIndex size = value.size();
for (Json::ArrayIndex index = 0; index < size; ++index) {
static char buffer[16];
#if defined(_MSC_VER) && defined(__STDC_SECURE_LIB__)
sprintf_s(buffer, sizeof(buffer), "[%d]", index);

41
src/lib_json/json_reader.cpp
View File

@ -368,7 +368,7 @@ bool Reader::readComment() {
static std::string normalizeEOL(Reader::Location begin, Reader::Location end) {
std::string normalized;
normalized.reserve(end - begin);
normalized.reserve(static_cast<size_t>(end - begin));
Reader::Location current = begin;
while (current != end) {
char c = *current++;
@ -578,7 +578,7 @@ bool Reader::decodeNumber(Token& token, Value& decoded) {
Char c = *current++;
if (c < '0' || c > '9')
return decodeDouble(token, decoded);
Value::UInt digit(c - '0');
Value::UInt digit(static_cast<Value::UInt>(c - '0'));
if (value >= threshold) {
// We've hit or exceeded the max value divided by 10 (rounded down). If
// a) we've only just touched the limit, b) this is the last digit, and
@ -636,7 +636,7 @@ bool Reader::decodeString(Token& token) {
}
bool Reader::decodeString(Token& token, std::string& decoded) {
decoded.reserve(token.end_ - token.start_ - 2);
decoded.reserve(static_cast<size_t>(token.end_ - token.start_ - 2));
Location current = token.start_ + 1; // skip '"'
Location end = token.end_ - 1; // do not include '"'
while (current != end) {
@ -720,13 +720,13 @@ bool Reader::decodeUnicodeCodePoint(Token& token,
bool Reader::decodeUnicodeEscapeSequence(Token& token,
Location& current,
Location end,
unsigned int& unicode) {
unsigned int& ret_unicode) {
if (end - current < 4)
return addError(
"Bad unicode escape sequence in string: four digits expected.",
token,
current);
unicode = 0;
int unicode = 0;
for (int index = 0; index < 4; ++index) {
Char c = *current++;
unicode *= 16;
@ -742,6 +742,7 @@ bool Reader::decodeUnicodeEscapeSequence(Token& token,
token,
current);
}
ret_unicode = static_cast<unsigned int>(unicode);
return true;
}
@ -756,7 +757,7 @@ Reader::addError(const std::string& message, Token& token, Location extra) {
}
bool Reader::recoverFromError(TokenType skipUntilToken) {
int errorCount = int(errors_.size());
size_t const errorCount = errors_.size();
Token skip;
for (;;) {
if (!readToken(skip))
@ -851,7 +852,7 @@ std::vector<Reader::StructuredError> Reader::getStructuredErrors() const {
}
bool Reader::pushError(const Value& value, const std::string& message) {
size_t length = end_ - begin_;
ptrdiff_t const length = end_ - begin_;
if(value.getOffsetStart() > length
|| value.getOffsetLimit() > length)
return false;
@ -868,7 +869,7 @@ bool Reader::pushError(const Value& value, const std::string& message) {
}
bool Reader::pushError(const Value& value, const std::string& message, const Value& extra) {
size_t length = end_ - begin_;
ptrdiff_t const length = end_ - begin_;
if(value.getOffsetStart() > length
|| value.getOffsetLimit() > length
|| extra.getOffsetLimit() > length)
@ -918,8 +919,8 @@ public:
typedef char Char;
typedef const Char* Location;
struct StructuredError {
size_t offset_start;
size_t offset_limit;
ptrdiff_t offset_start;
ptrdiff_t offset_limit;
std::string message;
};
@ -1560,7 +1561,7 @@ bool OurReader::decodeNumber(Token& token, Value& decoded) {
Char c = *current++;
if (c < '0' || c > '9')
return decodeDouble(token, decoded);
Value::UInt digit(c - '0');
Value::UInt digit(static_cast<Value::UInt>(c - '0'));
if (value >= threshold) {
// We've hit or exceeded the max value divided by 10 (rounded down). If
// a) we've only just touched the limit, b) this is the last digit, and
@ -1596,12 +1597,13 @@ bool OurReader::decodeDouble(Token& token, Value& decoded) {
double value = 0;
const int bufferSize = 32;
int count;
int length = int(token.end_ - token.start_);
ptrdiff_t const length = token.end_ - token.start_;
// Sanity check to avoid buffer overflow exploits.
if (length < 0) {
return addError("Unable to parse token length", token);
}
size_t const ulength = static_cast<size_t>(length);
// Avoid using a string constant for the format control string given to
// sscanf, as this can cause hard to debug crashes on OS X. See here for more
@ -1612,7 +1614,7 @@ bool OurReader::decodeDouble(Token& token, Value& decoded) {
if (length <= bufferSize) {
Char buffer[bufferSize + 1];
memcpy(buffer, token.start_, length);
memcpy(buffer, token.start_, ulength);
buffer[length] = 0;
count = sscanf(buffer, format, &value);
} else {
@ -1640,7 +1642,7 @@ bool OurReader::decodeString(Token& token) {
}
bool OurReader::decodeString(Token& token, std::string& decoded) {
decoded.reserve(token.end_ - token.start_ - 2);
decoded.reserve(static_cast<size_t>(token.end_ - token.start_ - 2));
Location current = token.start_ + 1; // skip '"'
Location end = token.end_ - 1; // do not include '"'
while (current != end) {
@ -1724,13 +1726,13 @@ bool OurReader::decodeUnicodeCodePoint(Token& token,
bool OurReader::decodeUnicodeEscapeSequence(Token& token,
Location& current,
Location end,
unsigned int& unicode) {
unsigned int& ret_unicode) {
if (end - current < 4)
return addError(
"Bad unicode escape sequence in string: four digits expected.",
token,
current);
unicode = 0;
int unicode = 0;
for (int index = 0; index < 4; ++index) {
Char c = *current++;
unicode *= 16;
@ -1746,6 +1748,7 @@ bool OurReader::decodeUnicodeEscapeSequence(Token& token,
token,
current);
}
ret_unicode = static_cast<unsigned int>(unicode);
return true;
}
@ -1760,7 +1763,7 @@ OurReader::addError(const std::string& message, Token& token, Location extra) {
}
bool OurReader::recoverFromError(TokenType skipUntilToken) {
int errorCount = int(errors_.size());
size_t errorCount = errors_.size();
Token skip;
for (;;) {
if (!readToken(skip))
@ -1850,7 +1853,7 @@ std::vector<OurReader::StructuredError> OurReader::getStructuredErrors() const {
}
bool OurReader::pushError(const Value& value, const std::string& message) {
size_t length = end_ - begin_;
ptrdiff_t length = end_ - begin_;
if(value.getOffsetStart() > length
|| value.getOffsetLimit() > length)
return false;
@ -1867,7 +1870,7 @@ bool OurReader::pushError(const Value& value, const std::string& message) {
}
bool OurReader::pushError(const Value& value, const std::string& message, const Value& extra) {
size_t length = end_ - begin_;
ptrdiff_t length = end_ - begin_;
if(value.getOffsetStart() > length
|| value.getOffsetLimit() > length
|| extra.getOffsetLimit() > length)

11
src/lib_json/json_value.cpp
View File

@ -55,6 +55,9 @@ const LargestUInt Value::maxLargestUInt = LargestUInt(-1);
#if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
template <typename T, typename U>
static inline bool InRange(double d, T min, U max) {
// The casts can lose precision, but we are looking only for
// an approximate range. Might fail on edge cases though. ~cdunn
//return d >= static_cast<double>(min) && d <= static_cast<double>(max);
return d >= min && d <= max;
}
#else // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
@ -1332,13 +1335,13 @@ std::string Value::getComment(CommentPlacement placement) const {
return "";
}
void Value::setOffsetStart(size_t start) { start_ = start; }
void Value::setOffsetStart(ptrdiff_t start) { start_ = start; }
void Value::setOffsetLimit(size_t limit) { limit_ = limit; }
void Value::setOffsetLimit(ptrdiff_t limit) { limit_ = limit; }
size_t Value::getOffsetStart() const { return start_; }
ptrdiff_t Value::getOffsetStart() const { return start_; }
size_t Value::getOffsetLimit() const { return limit_; }
ptrdiff_t Value::getOffsetLimit() const { return limit_; }
std::string Value::toStyledString() const {
StyledWriter writer;

34
src/lib_json/json_writer.cpp
View File

@ -361,8 +361,8 @@ void FastWriter::writeValue(const Value& value) {
break;
case arrayValue: {
document_ += '[';
int size = value.size();
for (int index = 0; index < size; ++index) {
ArrayIndex size = value.size();
for (ArrayIndex index = 0; index < size; ++index) {
if (index > 0)
document_ += ',';
writeValue(value[index]);
@ -506,10 +506,10 @@ void StyledWriter::writeArrayValue(const Value& value) {
}
bool StyledWriter::isMultineArray(const Value& value) {
int size = value.size();
ArrayIndex const size = value.size();
bool isMultiLine = size * 3 >= rightMargin_;
childValues_.clear();
for (int index = 0; index < size && !isMultiLine; ++index) {
for (ArrayIndex index = 0; index < size && !isMultiLine; ++index) {
const Value& childValue = value[index];
isMultiLine = ((childValue.isArray() || childValue.isObject()) &&
childValue.size() > 0);
@ -518,13 +518,13 @@ bool StyledWriter::isMultineArray(const Value& value) {
{
childValues_.reserve(size);
addChildValues_ = true;
int lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
for (int index = 0; index < size; ++index) {
ArrayIndex lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
for (ArrayIndex index = 0; index < size; ++index) {
if (hasCommentForValue(value[index])) {
isMultiLine = true;
}
writeValue(value[index]);
lineLength += int(childValues_[index].length());
lineLength += childValues_[index].length();
}
addChildValues_ = false;
isMultiLine = isMultiLine || lineLength >= rightMargin_;
@ -725,10 +725,10 @@ void StyledStreamWriter::writeArrayValue(const Value& value) {
}
bool StyledStreamWriter::isMultineArray(const Value& value) {
int size = value.size();
ArrayIndex const size = value.size();
bool isMultiLine = size * 3 >= rightMargin_;
childValues_.clear();
for (int index = 0; index < size && !isMultiLine; ++index) {
for (ArrayIndex index = 0; index < size && !isMultiLine; ++index) {
const Value& childValue = value[index];
isMultiLine = ((childValue.isArray() || childValue.isObject()) &&
childValue.size() > 0);
@ -737,13 +737,13 @@ bool StyledStreamWriter::isMultineArray(const Value& value) {
{
childValues_.reserve(size);
addChildValues_ = true;
int lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
for (int index = 0; index < size; ++index) {
ArrayIndex lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
for (ArrayIndex index = 0; index < size; ++index) {
if (hasCommentForValue(value[index])) {
isMultiLine = true;
}
writeValue(value[index]);
lineLength += int(childValues_[index].length());
lineLength += childValues_[index].length();
}
addChildValues_ = false;
isMultiLine = isMultiLine || lineLength >= rightMargin_;
@ -1008,10 +1008,10 @@ void BuiltStyledStreamWriter::writeArrayValue(Value const& value) {
}
bool BuiltStyledStreamWriter::isMultineArray(Value const& value) {
int size = value.size();
ArrayIndex const size = value.size();
bool isMultiLine = size * 3 >= rightMargin_;
childValues_.clear();
for (int index = 0; index < size && !isMultiLine; ++index) {
for (ArrayIndex index = 0; index < size && !isMultiLine; ++index) {
Value const& childValue = value[index];
isMultiLine = ((childValue.isArray() || childValue.isObject()) &&
childValue.size() > 0);
@ -1020,13 +1020,13 @@ bool BuiltStyledStreamWriter::isMultineArray(Value const& value) {
{
childValues_.reserve(size);
addChildValues_ = true;
int lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
for (int index = 0; index < size; ++index) {
ArrayIndex lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
for (ArrayIndex index = 0; index < size; ++index) {
if (hasCommentForValue(value[index])) {
isMultiLine = true;
}
writeValue(value[index]);
lineLength += int(childValues_[index].length());
lineLength += childValues_[index].length();
}
addChildValues_ = false;
isMultiLine = isMultiLine || lineLength >= rightMargin_;