diff options
| -rw-r--r-- | include/mupdf/fitz/system.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/mupdf/fitz/system.h b/include/mupdf/fitz/system.h index 2ae2f367..aeb5686c 100644 --- a/include/mupdf/fitz/system.h +++ b/include/mupdf/fitz/system.h @@ -76,6 +76,18 @@ #if _MSC_VER < 1800 #define va_copy(a, oa) do { a=oa; } while (0) #define va_copy_end(a) do {} while(0) + +static __inline int signbit(double x) +{ + union + { + double d; + __int64 i; + } u; + u.d = x; + return (int)(u.i>>63); +} + #else #define va_copy_end(a) va_end(a) #endif |