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Diffstat (limited to 'port/snprintf.c')
-rw-r--r-- | port/snprintf.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/port/snprintf.c b/port/snprintf.c new file mode 100644 index 00000000..ddbf6581 --- /dev/null +++ b/port/snprintf.c @@ -0,0 +1,37 @@ +/** + * Workaround for lack of snprintf(3) in Visual Studio. See + * http://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010/8712996#8712996 + * It's a trivial wrapper around the builtin _vsnprintf_s and + * _vscprintf functions. + */ + +#ifdef _MSC_VER + +#include <stdio.h> +#include <stdarg.h> + +int vsnprintf(char* str, size_t size, const char* format, va_list ap) +{ + int count = -1; + + if (size != 0) + count = _vsnprintf_s(str, size, _TRUNCATE, format, ap); + if (count == -1) + count = _vscprintf(format, ap); + + return count; +} + +int snprintf(char* str, size_t size, const char* format, ...) +{ + int count; + va_list ap; + + va_start(ap, format); + count = vsnprintf(str, size, format, ap); + va_end(ap); + + return count; +} + +#endif // _MSC_VER |