diff options
Diffstat (limited to 'src/libmdsserver')
| -rw-r--r-- | src/libmdsserver/macros.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/libmdsserver/macros.h b/src/libmdsserver/macros.h index 79d427f..e7cfad5 100644 --- a/src/libmdsserver/macros.h +++ b/src/libmdsserver/macros.h @@ -38,6 +38,19 @@ /** + * Wrapper around `asprintf` that makes sure that first + * argument gets set to `NULL` on error and that zero is + * returned on success rather than the number of printed + * characters + * + * @param VAR:char** The output parameter for the string + * @param ...:const char*, ... The format string and arguments + * @return :int Zero on success, -1 on error + */ +#define xasprintf(VAR, ...) \ + (asprintf(&(VAR), __VA_ARGS__) < 0 ? (VAR = NULL, -1) : 0) + +/** * Wrapper for `snprintf` that allows you to forget about the buffer size * * @param buffer:char[] The buffer, must be of the type `char[]` and not `char*` |