diff options
Diffstat (limited to 'lib/ccan/container_of/test/compile_fail-var-types.c')
-rw-r--r-- | lib/ccan/container_of/test/compile_fail-var-types.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/lib/ccan/container_of/test/compile_fail-var-types.c b/lib/ccan/container_of/test/compile_fail-var-types.c new file mode 100644 index 0000000000..f254d92102 --- /dev/null +++ b/lib/ccan/container_of/test/compile_fail-var-types.c @@ -0,0 +1,25 @@ +#include <ccan/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); +#if !HAVE_TYPEOF +#error "Unfortunately we don't fail if we don't have typeof." +#endif +#else + foop = NULL; +#endif + (void) foop; /* Suppress unused-but-set-variable warning. */ + return intp == NULL; +} |