X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Fcontainer_of%2Ftest%2Fcompile_fail-var-types.c;fp=ccan%2Fcontainer_of%2Ftest%2Fcompile_fail-var-types.c;h=5c7767985223b62259a7cea1c08c0dd8e60fc630;hb=650c775ff00cccd03fc84e7789a03c51d9839004;hp=0000000000000000000000000000000000000000;hpb=c8acddea39d222312102952e91c32cfe4dd2cea0;p=ccan

diff --git a/ccan/container_of/test/compile_fail-var-types.c b/ccan/container_of/test/compile_fail-var-types.c
new file mode 100644
index 00000000..5c776798
--- /dev/null
+++ b/ccan/container_of/test/compile_fail-var-types.c
@@ -0,0 +1,21 @@
+#include "container_of/container_of.h"
+#include <stdlib.h>
+
+struct foo {
+	int a;
+	char b;
+};
+
+int main(int argc, char *argv[])
+{
+	struct foo foo = { .a = 1, .b = 2 }, *foop;
+	int *intp = &foo.a;
+
+#ifdef FAIL
+	/* b is a char, but intp is an int * */
+	foop = container_of_var(intp, foop, b);
+#else
+	foop = NULL;
+#endif
+	return intp == NULL;
+}