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// RUN: %clang_cc1 -fsyntax-only -verify %s
// rdar://9584012
typedef struct {
char *str;
} Class;
typedef union {
Class *object;
} Instance __attribute__((transparent_union));
__attribute__((nonnull(1))) void Class_init(Instance this, char *str) {
this.object->str = str;
}
int main(void) {
Class *obj;
Class_init(0, "Hello World"); // expected-warning {{null passed to a callee which requires a non-null argument}}
Class_init(obj, "Hello World");
}
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