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Merge "Add a pre-C++11 constexpr compatibility macro."

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Dan Albert 2014-11-20 20:13:20 +00:00 • committed by Gerrit Code Review
commit 5d8a5ade62
1 changed files with 11 additions and 0 deletions
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11
include/utils/Compat.h
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@ -43,6 +43,17 @@ static inline ssize_t pread64(int fd, void* buf, size_t nbytes, off64_t offset)
# define ZD_TYPE long # define ZD_TYPE long
#endif #endif
/*
* Needed for cases where something should be constexpr if possible, but not
* being constexpr is fine if in pre-C++11 code (such as a const static float
* member variable).
*/
#if __cplusplus >= 201103L
#define CONSTEXPR constexpr
#else
#define CONSTEXPR
#endif
/* /*
* TEMP_FAILURE_RETRY is defined by some, but not all, versions of * TEMP_FAILURE_RETRY is defined by some, but not all, versions of
* <unistd.h>. (Alas, it is not as standard as we'd hoped!) So, if it's * <unistd.h>. (Alas, it is not as standard as we'd hoped!) So, if it's