diff options
| author | Francisco Jerez <[email protected]> | 2018-02-12 16:32:20 -0800 |
|---|---|---|
| committer | Francisco Jerez <[email protected]> | 2018-02-24 15:28:36 -0800 |
| commit | 8d1f1ce4124c1e0dbfc5f3d0578fbee6e24140c8 (patch) | |
| tree | 8c7c2a0d3c3a9c0a267a81791d5ea6f001bf5f41 | |
| parent | 378e918e2891b2712b64c4ad1ef92bfc539a13e7 (diff) | |
util: Add EXPLICIT_CONVERSION macro.
This can be used to specify that a C++ conversion operator is not
meant to be used for implicit conversions, which can lead to
unintended loss of information in some cases. Implemented as a macro
in order to keep old GCC versions happy.
Reviewed-by: Plamena Manolova <[email protected]>
| -rw-r--r-- | src/util/macros.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/util/macros.h b/src/util/macros.h index e3c785af508..6d3df904082 100644 --- a/src/util/macros.h +++ b/src/util/macros.h @@ -285,4 +285,14 @@ do { \ #define MIN3( A, B, C ) ((A) < (B) ? MIN2(A, C) : MIN2(B, C)) #define MAX3( A, B, C ) ((A) > (B) ? MAX2(A, C) : MAX2(B, C)) +/** + * Macro for declaring an explicit conversion operator. Defaults to an + * implicit conversion if C++11 is not supported. + */ +#if __cplusplus >= 201103L +#define EXPLICIT_CONVERSION explicit +#elif defined(__cplusplus) +#define EXPLICIT_CONVERSION +#endif + #endif /* UTIL_MACROS_H */ |