Always abort on overflow in String_cat

Not only in debug mode.
4 years ago · 549fcb6bb8
parent 08166b27b1
commit 549fcb6bb8
1 changed files with 3 additions and 1 deletions
--- a/XUtils.c
+++ b/XUtils.c
@ -115,7 +115,9 @@ inline bool String_contains_i(const char* s1, const char* s2, bool multi) {
 char* String_cat(const char* s1, const char* s2) {
   const size_t l1 = strlen(s1);
   const size_t l2 = strlen(s2);
-   assert(SIZE_MAX - l1 > l2);
+   if (SIZE_MAX - l1 <= l2) {
+      fail();
+   }
   char* out = xMalloc(l1 + l2 + 1);
   memcpy(out, s1, l1);
   memcpy(out + l1, s2, l2);