Do not resize blocks on realloc

This allocator was not designed for reallocations, and therefore
prev->size cannot be extended because that would overlap its contents
with other data.

Because of this, the only safe way to achieve a reallocation is to
always allocate a new block, copy any existing data and free the old
block.

1 files changed, 0 insertions, 5 deletions

diff --git a/tinyalloc.c b/tinyalloc.c
index 69eaeb5..1c53567 100644
--- a/tinyalloc.c
+++ b/tinyalloc.c
@@ -280,11 +280,6 @@ void *ta_realloc(void *ptr, size_t n) {
 
     if (!ptr)
         return NULL;
-    else if (n <= prev->size)
-    {
-        prev->size = n;
-        return prev->addr;
-    }
 
     char *const new = ta_alloc(n), *p = new;
     const char *src = prev->addr;