diff options
| -rw-r--r-- | src/klib/kvec.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/klib/kvec.h b/src/klib/kvec.h index f9ecca3d55..a32b35a14c 100644 --- a/src/klib/kvec.h +++ b/src/klib/kvec.h @@ -105,11 +105,12 @@ } while (0) #define kv_concat_len(v, data, len) \ - do { \ + if (len > 0) { \ kv_ensure_space(v, len); \ + assert((v).items); \ memcpy((v).items + (v).size, data, sizeof((v).items[0]) * len); \ (v).size = (v).size + len; \ - } while (0) + } #define kv_concat(v, str) kv_concat_len(v, str, strlen(str)) #define kv_splice(v1, v0) kv_concat_len(v1, (v0).items, (v0).size) |