minor memory safeguard

effekt-lang · Sep 23, 2022 · 2d234fb · 2d234fb
1 parent c61c3a6
commit 2d234fb
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/libraries/llvm/buffer.c b/libraries/llvm/buffer.c
@@ -69,6 +69,8 @@ struct Pos c_buffer_construct_zeroed(const uint64_t n) {
 }
 
 void c_buffer_truncate(struct Pos buffer, const uint64_t n) {
+    if (n > c_buffer_length(buffer))
+        return;
     buffer.tag = n;
 }