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Merge pull request #29 from mloy/type-punned-pointer

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Type punned pointer

I'll revert this if anyone reports a problem. *strict-aliasing* is not my favorite compiler warning.
This commit is contained in:
Christopher Dunn 2014-08-13 23:41:05 -07:00
commit 3515db184a
2 changed files with 6 additions and 1 deletions
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4
src/lib_json/CMakeLists.txt
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@ -7,6 +7,10 @@ ELSE(JSONCPP_LIB_BUILD_SHARED)
ENDIF(JSONCPP_LIB_BUILD_SHARED)
if( CMAKE_COMPILER_IS_GNUCXX )
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror=strict-aliasing")
endif( CMAKE_COMPILER_IS_GNUCXX )
SET( JSONCPP_INCLUDE_DIR ../../include )
SET( PUBLIC_HEADERS

3
src/lib_json/json_value.cpp
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@ -34,7 +34,8 @@ namespace Json {
#define ALIGNAS(byte_alignment)
#endif
static const unsigned char ALIGNAS(8) kNull[sizeof(Value)] = {0};
const Value& Value::null = reinterpret_cast<const Value&>(kNull);
const unsigned char& kNullRef = kNull[0];
const Value& Value::null = reinterpret_cast<const Value&>(kNullRef);
const Int Value::minInt = Int(~(UInt(-1) / 2));
const Int Value::maxInt = Int(UInt(-1) / 2);