diff options
Diffstat (limited to 'include/gtest/internal/gtest-internal.h')
-rw-r--r-- | include/gtest/internal/gtest-internal.h | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/include/gtest/internal/gtest-internal.h b/include/gtest/internal/gtest-internal.h index f61d502..d596b3a 100644 --- a/include/gtest/internal/gtest-internal.h +++ b/include/gtest/internal/gtest-internal.h @@ -383,7 +383,7 @@ class FloatingPoint { // around may change its bits, although the new value is guaranteed // to be also a NAN. Therefore, don't expect this constructor to // preserve the bits in x when x is a NAN. - explicit FloatingPoint(const RawType& x) : value_(x) {} + explicit FloatingPoint(const RawType& x) { u_.value_ = x; } // Static methods @@ -392,8 +392,8 @@ class FloatingPoint { // This function is needed to test the AlmostEquals() method. static RawType ReinterpretBits(const Bits bits) { FloatingPoint fp(0); - fp.bits_ = bits; - return fp.value_; + fp.u_.bits_ = bits; + return fp.u_.value_; } // Returns the floating-point number that represent positive infinity. @@ -404,16 +404,16 @@ class FloatingPoint { // Non-static methods // Returns the bits that represents this number. - const Bits &bits() const { return bits_; } + const Bits &bits() const { return u_.bits_; } // Returns the exponent bits of this number. - Bits exponent_bits() const { return kExponentBitMask & bits_; } + Bits exponent_bits() const { return kExponentBitMask & u_.bits_; } // Returns the fraction bits of this number. - Bits fraction_bits() const { return kFractionBitMask & bits_; } + Bits fraction_bits() const { return kFractionBitMask & u_.bits_; } // Returns the sign bit of this number. - Bits sign_bit() const { return kSignBitMask & bits_; } + Bits sign_bit() const { return kSignBitMask & u_.bits_; } // Returns true iff this is NAN (not a number). bool is_nan() const { @@ -433,10 +433,17 @@ class FloatingPoint { // a NAN must return false. if (is_nan() || rhs.is_nan()) return false; - return DistanceBetweenSignAndMagnitudeNumbers(bits_, rhs.bits_) <= kMaxUlps; + return DistanceBetweenSignAndMagnitudeNumbers(u_.bits_, rhs.u_.bits_) + <= kMaxUlps; } private: + // The data type used to store the actual floating-point number. + union FloatingPointUnion { + RawType value_; // The raw floating-point number. + Bits bits_; // The bits that represent the number. + }; + // Converts an integer from the sign-and-magnitude representation to // the biased representation. More precisely, let N be 2 to the // power of (kBitCount - 1), an integer x is represented by the @@ -471,10 +478,7 @@ class FloatingPoint { return (biased1 >= biased2) ? (biased1 - biased2) : (biased2 - biased1); } - union { - RawType value_; // The raw floating-point number. - Bits bits_; // The bits that represent the number. - }; + FloatingPointUnion u_; }; // Typedefs the instances of the FloatingPoint template class that we |