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Fixed warning "unused variable" with GCC 4.4 (issue #912)

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Benoit Blanchon
2019-02-28 10:22:27 +01:00
parent 1d5721f3bd
commit f342dee2b4
2 changed files with 4 additions and 12 deletions
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1
CHANGELOG.md
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@ -4,6 +4,7 @@ ArduinoJson: change log
HEAD HEAD
---- ----
* Fixed warning "unused variable" with GCC 4.4 (issue #912)
* Added a clear error message for `StaticJsonBuffer` and `DynamicJsonBuffer` * Added a clear error message for `StaticJsonBuffer` and `DynamicJsonBuffer`
v6.9.0 (2019-02-26) v6.9.0 (2019-02-26)

15
src/ArduinoJson/Numbers/FloatTraits.hpp
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@ -98,12 +98,8 @@ struct FloatTraits<T, 8 /*64bits*/> {
// we use this function to workaround platforms with single precision literals // we use this function to workaround platforms with single precision literals
// (for example, when -fsingle-precision-constant is passed to GCC) // (for example, when -fsingle-precision-constant is passed to GCC)
static T forge(uint32_t msb, uint32_t lsb) { static T forge(uint32_t msb, uint32_t lsb) {
union { uint64_t bits = (uint64_t(msb) << 32) | lsb;
uint64_t integerBits; return *reinterpret_cast<T*>(&bits);
T floatBits;
};
integerBits = (uint64_t(msb) << 32) | lsb;
return floatBits;
} }
}; };
@ -150,12 +146,7 @@ struct FloatTraits<T, 4 /*32bits*/> {
} }
static T forge(uint32_t bits) { static T forge(uint32_t bits) {
union { return *reinterpret_cast<T*>(&bits);
uint32_t integerBits;
T floatBits;
};
integerBits = bits;
return floatBits;
} }
static T nan() { static T nan() {