| Norman James | 6a58a27 | 2015-10-07 14:34:16 -0500 | [diff] [blame] | 1 | #include <ccan/container_of/container_of.h>
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| 2 | #include <stdlib.h>
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| 3 |
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| 4 | struct foo {
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| 5 | int a;
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| 6 | char b;
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| 7 | };
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| 8 |
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| 9 | int main(int argc, char *argv[])
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| 10 | {
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| 11 | struct foo foo = { .a = 1, .b = 2 }, *foop;
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| 12 | int *intp = &foo.a;
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| 13 |
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| 14 | #ifdef FAIL
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| 15 | /* b is a char, but intp is an int * */
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| 16 | foop = container_of_var(intp, foop, b);
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| 17 | #if !HAVE_TYPEOF
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| 18 | #error "Unfortunately we don't fail if we don't have typeof."
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| 19 | #endif
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| 20 | #else
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| 21 | foop = NULL;
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| 22 | #endif
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| 23 | (void) foop; /* Suppress unused-but-set-variable warning. */
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| 24 | return intp == NULL;
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| 25 | }
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