From 1b8fbbd843ddeb5fc81c9303db9c590a436d499b Mon Sep 17 00:00:00 2001 From: William Casarin Date: Mon, 9 Jul 2018 12:10:32 -0700 Subject: progress --- ccan/container_of/test/run.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 ccan/container_of/test/run.c (limited to 'ccan/container_of/test/run.c') diff --git a/ccan/container_of/test/run.c b/ccan/container_of/test/run.c new file mode 100644 index 0000000..3255729 --- /dev/null +++ b/ccan/container_of/test/run.c @@ -0,0 +1,30 @@ +#include +#include + +struct foo { + int a; + char b; +}; + +int main(void) +{ + struct foo foo = { .a = 1, .b = 2 }; + int *intp = &foo.a; + char *charp = &foo.b; + + plan_tests(12); + ok1(container_of(intp, struct foo, a) == &foo); + ok1(container_of(charp, struct foo, b) == &foo); + ok1(container_of_or_null(intp, struct foo, a) == &foo); + ok1(container_of_or_null(charp, struct foo, b) == &foo); + ok1(container_of_or_null((int *)NULL, struct foo, a) == NULL); + ok1(container_of_or_null((char *)NULL, struct foo, b) == NULL); + ok1(container_of_var(intp, &foo, a) == &foo); + ok1(container_of_var(charp, &foo, b) == &foo); + + ok1(container_off(struct foo, a) == 0); + ok1(container_off(struct foo, b) == offsetof(struct foo, b)); + ok1(container_off_var(&foo, a) == 0); + ok1(container_off_var(&foo, b) == offsetof(struct foo, b)); + return exit_status(); +} -- cgit v1.2.3