llvm-project/clang/test/Sema/address-packed-member-memops.c

27 lines
560 B
C

// RUN: %clang_cc1 -fsyntax-only -verify %s
// expected-no-diagnostics
struct B {
int x, y, z, w;
} b;
struct __attribute__((packed)) A {
struct B b;
} a;
typedef __typeof__(sizeof(int)) size_t;
void *memcpy(void *dest, const void *src, size_t n);
int memcmp(const void *s1, const void *s2, size_t n);
void *memmove(void *dest, const void *src, size_t n);
void *memset(void *s, int c, size_t n);
int x;
void foo(void) {
memcpy(&a.b, &b, sizeof(b));
memmove(&a.b, &b, sizeof(b));
memset(&a.b, 0, sizeof(b));
x = memcmp(&a.b, &b, sizeof(b));
}