diff options
Diffstat (limited to 'src/sds.c')
-rw-r--r-- | src/sds.c | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -603,6 +603,10 @@ sds sdscatfmt(sds s, char const *fmt, ...) { long i; va_list ap; + /* To avoid continuous reallocations, let's start with a buffer that + * can hold at least two times the format string itself. It's not the + * best heuristic but seems to work in practice. */ + s = sdsMakeRoomFor(s, initlen + strlen(fmt)*2); va_start(ap,fmt); f = fmt; /* Next format specifier byte to process. */ i = initlen; /* Position of the next byte to write to dest str. */ |