30 lines
890 B
C
30 lines
890 B
C
#include <ccan/container_of/container_of.h>
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#include <ccan/tap/tap.h>
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struct foo {
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int a;
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char b;
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};
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int main(void)
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{
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struct foo foo = { .a = 1, .b = 2 };
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int *intp = &foo.a;
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char *charp = &foo.b;
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plan_tests(12);
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ok1(container_of(intp, struct foo, a) == &foo);
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ok1(container_of(charp, struct foo, b) == &foo);
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ok1(container_of_or_null(intp, struct foo, a) == &foo);
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ok1(container_of_or_null(charp, struct foo, b) == &foo);
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ok1(container_of_or_null((int *)NULL, struct foo, a) == NULL);
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ok1(container_of_or_null((char *)NULL, struct foo, b) == NULL);
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ok1(container_of_var(intp, &foo, a) == &foo);
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ok1(container_of_var(charp, &foo, b) == &foo);
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ok1(container_off(struct foo, a) == 0);
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ok1(container_off(struct foo, b) == offsetof(struct foo, b));
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ok1(container_off_var(&foo, a) == 0);
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ok1(container_off_var(&foo, b) == offsetof(struct foo, b));
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return exit_status();
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}
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