fix: copy valid range when cloning stack

When cloning a stack we are only interested in copying valid data from the original stack, not the unused/garbaged tail of it.

1 files changed, 1 insertions, 1 deletions

diff --git a/std/stack.zc b/std/stack.zc
index 7df77f1..db02f2d 100644
--- a/std/stack.zc
+++ b/std/stack.zc
@@ -25,7 +25,7 @@ impl Stack<T> {
     new_stack.len = self.len;
     new_stack.cap = self.cap;
     new_stack.data = malloc(sizeof(T) * new_stack.cap);
-    memcpy(new_stack.data, self.data, sizeof(T) * new_stack.cap);
+    memcpy(new_stack.data, self.data, sizeof(T) * new_stack.len);
     return new_stack;
   }