devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Add missing std::numeric_limits specialization for half, and complete NumTraits<half>

Browse Source 
(grafted from d588822779
)
This commit is contained in:
Gael Guennebaud
2017-06-09 11:51:53 +02:00
parent db40309e70
commit 2c32368642
2 changed files with 67 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
test/half_float.cpp
View File

@@ -96,12 +96,24 @@ void test_conversion()
void test_numtraits()
{
std::cout << "epsilon = " << NumTraits<half>::epsilon() << std::endl;
std::cout << "highest = " << NumTraits<half>::highest() << std::endl;
std::cout << "lowest = " << NumTraits<half>::lowest() << std::endl;
std::cout << "inifinty = " << NumTraits<half>::infinity() << std::endl;
std::cout << "nan = " << NumTraits<half>::quiet_NaN() << std::endl;
std::cout << "epsilon = " << NumTraits<half>::epsilon() << " (0x" << std::hex << NumTraits<half>::epsilon().x << ")" << std::endl;
std::cout << "highest = " << NumTraits<half>::highest() << " (0x" << std::hex << NumTraits<half>::highest().x << ")" << std::endl;
std::cout << "lowest = " << NumTraits<half>::lowest() << " (0x" << std::hex << NumTraits<half>::lowest().x << ")" << std::endl;
std::cout << "min = " << (std::numeric_limits<half>::min)() << " (0x" << std::hex << half((std::numeric_limits<half>::min)()).x << ")" << std::endl;
std::cout << "denorm min = " << (std::numeric_limits<half>::denorm_min)() << " (0x" << std::hex << half((std::numeric_limits<half>::denorm_min)()).x << ")" << std::endl;
std::cout << "infinity = " << NumTraits<half>::infinity() << " (0x" << std::hex << NumTraits<half>::infinity().x << ")" << std::endl;
std::cout << "quiet nan = " << NumTraits<half>::quiet_NaN() << " (0x" << std::hex << NumTraits<half>::quiet_NaN().x << ")" << std::endl;
std::cout << "signaling nan = " << std::numeric_limits<half>::signaling_NaN() << " (0x" << std::hex << std::numeric_limits<half>::signaling_NaN().x << ")" << std::endl;
VERIFY(NumTraits<half>::IsSigned);
VERIFY_IS_EQUAL( std::numeric_limits<half>::infinity().x, half(std::numeric_limits<float>::infinity()).x );
VERIFY_IS_EQUAL( std::numeric_limits<half>::quiet_NaN().x, half(std::numeric_limits<float>::quiet_NaN()).x );
VERIFY_IS_EQUAL( std::numeric_limits<half>::signaling_NaN().x, half(std::numeric_limits<float>::signaling_NaN()).x );
VERIFY( (std::numeric_limits<half>::min)() > half(0.f) );
VERIFY( (std::numeric_limits<half>::denorm_min)() > half(0.f) );
VERIFY( (std::numeric_limits<half>::min)()/2 > half(0.f) );
VERIFY_IS_EQUAL( (std::numeric_limits<half>::denorm_min)()/2, half(0.f) );
}
void test_arithmetic()