add crealloc

Signed-off-by: Mattias Andrée <maandree@operamail.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/include/slibc-alloc.h b/include/slibc-alloc.h
index 4453fc6..0308482 100644
--- a/include/slibc-alloc.h
+++ b/include/slibc-alloc.h
@@ -58,6 +58,18 @@ void secure_free(void*);
  */
 size_t allocsize(void*); /* TODO not implemented */
 
+/**
+ * Variant of `realloc` that overrides newly allocated space
+ * with zeroes. Additionally, it will override any freed space
+ * with zeroes, including the old allocation if it creates a
+ * new allocation.
+ * 
+ * @param   ptr   The old allocation, see `realloc` for more details.
+ * @param   size  The new allocation size, see `realloc` for more details.
+ * @return        The new allocation, see `realloc` for more details.
+ */
+void* crealloc(void*, size_t); /* TODO not implemented */
+
 
 /**
  * This macro calls `fast_free` and then sets the pointer to `NULL`,