X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Ftcon%2Ftest%2Fcompile_fail-container1w.c;fp=ccan%2Ftcon%2Ftest%2Fcompile_fail-container1w.c;h=0226b68e9f01b9095ce01a50dec0092360407c62;hb=0ddea4131eca28437638cdaf9394324fafab33da;hp=0000000000000000000000000000000000000000;hpb=fd48aee6393bda1e4eda9f9e52e6d9f818b77211;p=ccan

diff --git a/ccan/tcon/test/compile_fail-container1w.c b/ccan/tcon/test/compile_fail-container1w.c
new file mode 100644
index 00000000..0226b68e
--- /dev/null
+++ b/ccan/tcon/test/compile_fail-container1w.c
@@ -0,0 +1,35 @@
+#include <stdlib.h>
+
+#include <ccan/tcon/tcon.h>
+#include <ccan/build_assert/build_assert.h>
+#include <ccan/tap/tap.h>
+
+struct inner {
+	int inner_val;
+};
+
+struct outer {
+	int outer_val;
+	struct inner inner;
+};
+
+struct info_base {
+	char *infop;
+};
+
+int main(int argc, char *argv[])
+{
+	TCON_WRAP(struct info_base,
+		  TCON_CONTAINER(concan, struct outer, inner)) info;
+	struct outer ovar;
+#ifdef FAIL
+#if !HAVE_TYPEOF
+#error We cannot detect type problems without HAVE_TYPEOF
+#endif
+	int *innerp = &ovar.outer_val;
+#else
+	struct inner *innerp = &ovar.inner;
+#endif
+
+	return tcon_container_of(&info, concan, innerp) == &ovar;
+}