tcon: Add an alternate way of building type canaries

[ccan] / ccan / tcon / test / compile_ok-void.c

diff --git a/ccan/tcon/test/compile_ok-void.c b/ccan/tcon/test/compile_ok-void.c
index 26b712f6b2485c3632d97d143bc44930ea9fb854..694a53b533d87db6478dda4557d77c2b206e1ad6 100644 (file)
--- a/ccan/tcon/test/compile_ok-void.c
+++ b/ccan/tcon/test/compile_ok-void.c
@@ -13,9 +13,15 @@ struct void_container {
 int main(int argc, char *argv[])
 {
        struct void_container vcon;
+       TCON_WRAP(struct container, void *canary) vconw;
 
        tcon_check(&vcon, canary, NULL)->raw.p = NULL;
        tcon_check(&vcon, canary, argv[0])->raw.p = NULL;
        tcon_check(&vcon, canary, main)->raw.p = NULL;
+
+       tcon_unwrap(tcon_check(&vconw, canary, NULL))->p = NULL;
+       tcon_unwrap(tcon_check(&vconw, canary, argv[0]))->p = NULL;
+       tcon_unwrap(tcon_check(&vconw, canary, main))->p = NULL;
+
        return 0;
 }