ISAR/libmdbx
3
0
Fork 0
mirror of https://github.com/isar/libmdbx.git synced 2025-10-18 22:09:03 +08:00
Code Issues Packages Projects Releases Wiki Activity

mdbx: add public MDBX_MAYBE_UNUSED.

Browse Source 
This also should fix C++ mdbx API build by MSVC 2015.
This commit is contained in:
Leonid Yuriev
2021-05-11 20:14:09 +03:00
parent ed58ff9f81
commit ebab75642e
8 changed files with 51 additions and 50 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
mdbx.h
View File

@@ -454,6 +454,14 @@ typedef mode_t mdbx_mode_t;
#endif
#endif /* MDBX_PRINTF_ARGS */
#if defined(DOXYGEN) || __has_cpp_attribute(maybe_unused)
#define MDBX_MAYBE_UNUSED [[maybe_unused]]
#elif defined(__GNUC__) || __has_attribute(__unused__)
#define MDBX_MAYBE_UNUSED __attribute__((__unused__))
#else
#define MDBX_MAYBE_UNUSED
#endif /* MDBX_MAYBE_UNUSED */
/* Oh, below are some songs and dances since:
* - C++ requires explicit definition of the necessary operators.
* - the proper implementation of DEFINE_ENUM_FLAG_OPERATORS for C++ required