mirror/fmt
1
0
Fork 0
mirror of https://github.com/fmtlib/fmt.git synced 2024-11-02 20:32:49 +00:00
Code Issues Packages Projects Releases Wiki Activity

Workaround broken __builtin_clz in clang with MS codegen (#519)

Browse Source
This commit is contained in:
Victor Zverovich 2017-06-17 07:31:45 -07:00
parent eafc6a3292
commit 569c5bdbf1
1 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
fmt/format.h
View File

@ -287,12 +287,16 @@ typedef __int64 intmax_t;
# define FMT_ASSERT(condition, message) assert((condition) && message)
#endif
#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clz)
# define FMT_BUILTIN_CLZ(n) __builtin_clz(n)
#endif
// __builtin_clz is broken in clang with Microsoft CodeGen:
// https://github.com/fmtlib/fmt/issues/519
#ifndef _MSC_VER
# if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clz)
# define FMT_BUILTIN_CLZ(n) __builtin_clz(n)
# endif
#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clzll)
# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n)
# if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clzll)
# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n)
# endif
#endif
// Some compilers masquerade as both MSVC and GCC-likes or