diff options
Diffstat (limited to 'src/common/compat.h')
| -rw-r--r-- | src/common/compat.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/common/compat.h b/src/common/compat.h index abacce231a..fde91172d4 100644 --- a/src/common/compat.h +++ b/src/common/compat.h @@ -76,6 +76,19 @@ #endif /* ifndef MAVE_MACRO__func__ */ #endif /* if not windows */ +#if defined(_MSC_VER) && (_MSC_VER < 1300) +/* MSVC versions before 7 apparently don't believe that you can cast uint64_t + * to double and really mean it. */ +extern inline double U64_TO_DBL(uint64_t x) { + int64_t i = (int64_t) x; + return (i < 0) ? ((double) INT64_MAX) : (double) i; +} +#define DBL_TO_U64(x) ((uint64_t)(int64_t) (x)) +#else +#define U64_TO_DBL(x) ((double) (x)) +#define DBL_TO_U64(x) ((uint64_t) (x)) +#endif + /* ===== String compatibility */ #ifdef MS_WINDOWS /* Windows names string functions differently from most other platforms. */ |