diff options
Diffstat (limited to 'Source/Core/Common/MathUtil.cpp')
| -rw-r--r-- | Source/Core/Common/MathUtil.cpp | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/Source/Core/Common/MathUtil.cpp b/Source/Core/Common/MathUtil.cpp index a9252ddf55..b2f8714698 100644 --- a/Source/Core/Common/MathUtil.cpp +++ b/Source/Core/Common/MathUtil.cpp @@ -196,6 +196,12 @@ const int fres_expected_dec[] = // Used by fres and ps_res. double ApproximateReciprocal(double val) { + // We are using namespace std scoped here because the Android NDK is complete trash as usual + // For 32bit targets(mips, ARMv7, x86) it doesn't provide an implementation of std::copysign + // but instead provides just global namespace copysign implementations. + // The workaround for this is to just use namespace std within this function's scope + // That way on real toolchains it will use the std:: variant like normal. + using namespace std; union { double valf; @@ -209,23 +215,23 @@ double ApproximateReciprocal(double val) // Special case 0 if (mantissa == 0 && exponent == 0) - return std::copysign(std::numeric_limits<double>::infinity(), valf); + return copysign(std::numeric_limits<double>::infinity(), valf); // Special case NaN-ish numbers if (exponent == (0x7FFLL << 52)) { if (mantissa == 0) - return std::copysign(0.0, valf); + return copysign(0.0, valf); return 0.0 + valf; } // Special case small inputs if (exponent < (895LL << 52)) - return std::copysign(std::numeric_limits<float>::max(), valf); + return copysign(std::numeric_limits<float>::max(), valf); // Special case large inputs if (exponent >= (1149LL << 52)) - return std::copysign(0.0, valf); + return copysign(0.0, valf); exponent = (0x7FDLL << 52) - exponent; |