From 1b8fbbd843ddeb5fc81c9303db9c590a436d499b Mon Sep 17 00:00:00 2001
From: William Casarin <jb55@jb55.com>
Date: Mon, 9 Jul 2018 12:10:32 -0700
Subject: progress

---
 ccan/tal/test/run-free.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 ccan/tal/test/run-free.c

(limited to 'ccan/tal/test/run-free.c')

diff --git a/ccan/tal/test/run-free.c b/ccan/tal/test/run-free.c
new file mode 100644
index 0000000..37d03cd
--- /dev/null
+++ b/ccan/tal/test/run-free.c
@@ -0,0 +1,29 @@
+#include <ccan/tal/tal.h>
+#include <ccan/tal/tal.c>
+#include <ccan/tap/tap.h>
+
+static void destroy_errno(char *p UNNEEDED)
+{
+	/* Errno restored for all the destructors. */
+	ok1(errno == EINVAL);
+	errno = ENOENT;
+}
+
+int main(void)
+{
+	char *p;
+
+	plan_tests(5);
+
+	p = tal(NULL, char);
+	ok1(tal_add_destructor(p, destroy_errno));
+	ok1(tal_add_destructor(p, destroy_errno));
+
+	/* Errno save/restored across free. */
+	errno = EINVAL;
+	tal_free(p);
+	ok1(errno == EINVAL);
+
+	tal_cleanup();
+	return exit_status();
+}
-- 
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