hare

commit 7bc46f6099382a5ca3f2323d1611ffe8c9a90998
parent d0f79b741d712c151d2d0e1496b17b692656cb04
Author: Alexey Yerin <yyp@disroot.org>
Date:   Sat, 19 Aug 2023 12:15:33 +0300

rt+libc: free() the pointer in realloc(p, 0)

This copies the interface of non-libc malloc and prevents valgrind from
reporting "realloc() with size 0" when slices are freed in rt::unensure.

Signed-off-by: Alexey Yerin <yyp@disroot.org>

Diffstat:
M
rt/malloc+libc.ha
 | 
4
++++

1 file changed, 4 insertions(+), 0 deletions(-)
diff --git a/rt/malloc+libc.ha b/rt/malloc+libc.ha
@@ -14,6 +14,10 @@ export fn malloc(n: size) nullable *void = {
 // in-place. Returns null if there is insufficient memory to support the
 // request.
 export fn realloc(p: nullable *void, n: size) nullable *void = {
+	if (n == 0) {
+		free(p);
+		return null;
+	};
 	return c_realloc(p, n);
 };