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// RUN: %clang_cc1 -fsyntax-only -Wnonnull -Wnullability %s -verify
// rdar://19160762
#if __has_feature(nullability)
#else
# error nullability feature should be defined
#endif
int * __nullable foo(int * __nonnull x);
int *__nonnull ret_nonnull();
int *foo(int *x) {
return 0;
}
int * __nullable foo1(int * __nonnull x); // expected-note {{previous declaration is here}}
int *foo1(int * __nullable x) { // expected-warning {{nullability specifier '__nullable' conflicts with existing specifier '__nonnull'}}
return 0;
}
int * __nullable foo2(int * __nonnull x);
int *foo2(int * __nonnull x) {
return 0;
}
int * __nullable foo3(int * __nullable x); // expected-note {{previous declaration is here}}
int *foo3(int * __nonnull x) { // expected-warning {{nullability specifier '__nonnull' conflicts with existing specifier '__nullable'}}
return 0;
}
int * ret_nonnull() {
return 0; // expected-warning {{null returned from function that requires a non-null return value}}
}
int main () {
foo(0); // expected-warning {{null passed to a callee that requires a non-null argument}}
}
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