tree-sitter-objc/examples/SemaObjC/warn-nontrivial-struct-mema...

40 lines
1.8 KiB
Objective-C

// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-runtime-has-weak -x objective-c -fobjc-arc -verify %s
void *memset(void *, int, __SIZE_TYPE__);
void bzero(void *, __SIZE_TYPE__);
void *memcpy(void *, const void *, __SIZE_TYPE__);
void *memmove(void *, const void *, __SIZE_TYPE__);
struct Trivial {
int f0;
volatile int f1;
};
struct NonTrivial0 {
int f0;
__weak id f1; // expected-note 2 {{non-trivial to default-initialize}} expected-note 2 {{non-trivial to copy}}
volatile int f2;
id f3[10]; // expected-note 2 {{non-trivial to default-initialize}} expected-note 2 {{non-trivial to copy}}
};
struct NonTrivial1 {
id f0; // expected-note 2 {{non-trivial to default-initialize}} expected-note 2 {{non-trivial to copy}}
int f1;
struct NonTrivial0 f2;
};
void testTrivial(struct Trivial *d, struct Trivial *s) {
memset(d, 0, sizeof(struct Trivial));
bzero(d, sizeof(struct Trivial));
memcpy(d, s, sizeof(struct Trivial));
memmove(d, s, sizeof(struct Trivial));
}
void testNonTrivial1(struct NonTrivial1 *d, struct NonTrivial1 *s) {
memset(d, 0, sizeof(struct NonTrivial1)); // expected-warning {{that is not trivial to primitive-default-initialize}} expected-note {{explicitly cast the pointer to silence}}
memset((void *)d, 0, sizeof(struct NonTrivial1));
bzero(d, sizeof(struct NonTrivial1)); // expected-warning {{that is not trivial to primitive-default-initialize}} expected-note {{explicitly cast the pointer to silence}}
memcpy(d, s, sizeof(struct NonTrivial1)); // expected-warning {{that is not trivial to primitive-copy}} expected-note {{explicitly cast the pointer to silence}}
memmove(d, s, sizeof(struct NonTrivial1)); // expected-warning {{that is not trivial to primitive-copy}} expected-note {{explicitly cast the pointer to silence}}
}