sonyshang shangsony
pps83
/ ctz_clz.cpp
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March 31, 2025 16:21
__builtin_ctz (ctzl, ctzll) and __builtin_clz (clzl, clzll) for Visual Studio
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| // Note, bsf/bsr are used by default. | |
| // Enable /arch:AVX2 compilation for better optimizations | |
| #if defined(_MSC_VER) && !defined(__clang__) | |
| #include <intrin.h> | |
| #include <limits.h> | |
| #if (defined(__cplusplus) && (__cplusplus >= 202002L)) || \ | |
| (defined(_MSVC_LANG) && (_MSVC_LANG >= 202002L)) | |
| #include <type_traits> |