diff options
Diffstat (limited to 'zencore/intmath.cpp')
| -rw-r--r-- | zencore/intmath.cpp | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/zencore/intmath.cpp b/zencore/intmath.cpp deleted file mode 100644 index 5a686dc8e..000000000 --- a/zencore/intmath.cpp +++ /dev/null @@ -1,65 +0,0 @@ -// Copyright Epic Games, Inc. All Rights Reserved. - -#include <zencore/endian.h> -#include <zencore/intmath.h> - -#include <zencore/testing.h> - -namespace zen { - -////////////////////////////////////////////////////////////////////////// -// -// Testing related code follows... -// - -#if ZEN_WITH_TESTS - -void -intmath_forcelink() -{ -} - -TEST_CASE("intmath") -{ - CHECK(FloorLog2(0x00) == 0); - CHECK(FloorLog2(0x01) == 0); - CHECK(FloorLog2(0x0f) == 3); - CHECK(FloorLog2(0x10) == 4); - CHECK(FloorLog2(0x11) == 4); - CHECK(FloorLog2(0x12) == 4); - CHECK(FloorLog2(0x22) == 5); - CHECK(FloorLog2(0x0001'0000) == 16); - CHECK(FloorLog2(0x0001'000f) == 16); - CHECK(FloorLog2(0x8000'0000) == 31); - - CHECK(FloorLog2_64(0x00ull) == 0); - CHECK(FloorLog2_64(0x01ull) == 0); - CHECK(FloorLog2_64(0x0full) == 3); - CHECK(FloorLog2_64(0x10ull) == 4); - CHECK(FloorLog2_64(0x11ull) == 4); - CHECK(FloorLog2_64(0x0001'0000ull) == 16); - CHECK(FloorLog2_64(0x0001'000full) == 16); - CHECK(FloorLog2_64(0x8000'0000ull) == 31); - CHECK(FloorLog2_64(0x0000'0001'0000'0000ull) == 32); - CHECK(FloorLog2_64(0x8000'0000'0000'0000ull) == 63); - - CHECK(CountLeadingZeros64(0x8000'0000'0000'0000ull) == 0); - CHECK(CountLeadingZeros64(0x0000'0000'0000'0000ull) == 64); - CHECK(CountLeadingZeros64(0x0000'0000'0000'0001ull) == 63); - CHECK(CountLeadingZeros64(0x0000'0000'8000'0000ull) == 32); - CHECK(CountLeadingZeros64(0x0000'0001'0000'0000ull) == 31); - - CHECK(CountTrailingZeros64(0x8000'0000'0000'0000ull) == 63); - CHECK(CountTrailingZeros64(0x0000'0000'0000'0000ull) == 64); - CHECK(CountTrailingZeros64(0x0000'0000'0000'0001ull) == 0); - CHECK(CountTrailingZeros64(0x0000'0000'8000'0000ull) == 31); - CHECK(CountTrailingZeros64(0x0000'0001'0000'0000ull) == 32); - - CHECK(ByteSwap(uint16_t(0x6d72)) == 0x726d); - CHECK(ByteSwap(uint32_t(0x2741'3965)) == 0x6539'4127); - CHECK(ByteSwap(uint64_t(0x214d'6172'7469'6e21ull)) == 0x216e'6974'7261'4d21ull); -} - -#endif - -} // namespace zen |