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// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 -Wnontrivial-memcall %s
extern "C" void *bzero(void *, unsigned);
extern "C" void *memset(void *, int, unsigned);
extern "C" void *memmove(void *s1, const void *s2, unsigned n);
extern "C" void *memcpy(void *s1, const void *s2, unsigned n);
class TriviallyCopyable {};
class NonTriviallyCopyable { NonTriviallyCopyable(const NonTriviallyCopyable&);};
struct Incomplete;
void test_bzero(TriviallyCopyable* tc,
NonTriviallyCopyable *ntc,
Incomplete* i) {
// OK
bzero(tc, sizeof(*tc));
// OK
bzero(i, 10);
// expected-warning@+2{{first argument in call to 'bzero' is a pointer to non-trivially copyable type 'NonTriviallyCopyable'}}
// expected-note@+1{{explicitly cast the pointer to silence this warning}}
bzero(ntc, sizeof(*ntc));
// OK
bzero((void*)ntc, sizeof(*ntc));
}
void test_memset(TriviallyCopyable* tc,
NonTriviallyCopyable *ntc,
Incomplete* i) {
// OK
memset(tc, 0, sizeof(*tc));
// OK
memset(i, 0, 10);
// expected-warning@+2{{first argument in call to 'memset' is a pointer to non-trivially copyable type 'NonTriviallyCopyable'}}
// expected-note@+1{{explicitly cast the pointer to silence this warning}}
memset(ntc, 0, sizeof(*ntc));
// OK
memset((void*)ntc, 0, sizeof(*ntc));
}
void test_memcpy(TriviallyCopyable* tc0, TriviallyCopyable* tc1,
NonTriviallyCopyable *ntc0, NonTriviallyCopyable *ntc1,
Incomplete *i0, Incomplete *i1) {
// OK
memcpy(tc0, tc1, sizeof(*tc0));
// OK
memcpy(i0, i1, 10);
// expected-warning@+2{{first argument in call to 'memcpy' is a pointer to non-trivially copyable type 'NonTriviallyCopyable'}}
// expected-note@+1{{explicitly cast the pointer to silence this warning}}
memcpy(ntc0, ntc1, sizeof(*ntc0));
// ~ OK
memcpy((void*)ntc0, ntc1, sizeof(*ntc0));
// OK
memcpy((void*)ntc0, (void*)ntc1, sizeof(*ntc0));
}
void test_memmove(TriviallyCopyable* tc0, TriviallyCopyable* tc1,
NonTriviallyCopyable *ntc0, NonTriviallyCopyable *ntc1,
Incomplete *i0, Incomplete *i1) {
// OK
memmove(tc0, tc1, sizeof(*tc0));
// OK
memmove(i0, i1, 10);
// expected-warning@+2{{first argument in call to 'memmove' is a pointer to non-trivially copyable type 'NonTriviallyCopyable'}}
// expected-note@+1{{explicitly cast the pointer to silence this warning}}
memmove(ntc0, ntc1, sizeof(*ntc0));
// ~ OK
memmove((void*)ntc0, ntc1, sizeof(*ntc0));
// OK
memmove((void*)ntc0, (void*)ntc1, sizeof(*ntc0));
}
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