forked from OSchip/llvm-project
39 lines
1.4 KiB
C++
39 lines
1.4 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
|
|
|
|
#define NULL ((char *)0)
|
|
|
|
#if __has_feature(__builtin_memcpy_inline)
|
|
#warning defined as expected
|
|
// expected-warning@-1 {{defined as expected}}
|
|
#endif
|
|
|
|
void test_memcpy_inline_null_src(void *ptr) {
|
|
__builtin_memcpy_inline(ptr, NULL, 4); // expected-warning {{null passed to a callee that requires a non-null argument}}
|
|
}
|
|
|
|
void test_memcpy_inline_null_dst(void *ptr) {
|
|
__builtin_memcpy_inline(NULL, ptr, 4); // expected-warning {{null passed to a callee that requires a non-null argument}}
|
|
}
|
|
|
|
void test_memcpy_inline_null_buffers() {
|
|
__builtin_memcpy_inline(NULL, NULL, 4);
|
|
// expected-warning@-1 {{null passed to a callee that requires a non-null argument}}
|
|
// expected-warning@-2 {{null passed to a callee that requires a non-null argument}}
|
|
}
|
|
|
|
void test_memcpy_inline_null_buffer_is_ok_if_size_is_zero(void *ptr) {
|
|
__builtin_memcpy_inline(ptr, NULL, /*size */ 0);
|
|
__builtin_memcpy_inline(NULL, ptr, /*size */ 0);
|
|
__builtin_memcpy_inline(NULL, NULL, /*size */ 0);
|
|
}
|
|
|
|
void test_memcpy_inline_non_constant_size(void *dst, const void *src, unsigned size) {
|
|
__builtin_memcpy_inline(dst, src, size); // expected-error {{argument to '__builtin_memcpy_inline' must be a constant integer}}
|
|
}
|
|
|
|
template <unsigned size>
|
|
void test_memcpy_inline_template(void *dst, const void *src) {
|
|
// we do not try to evaluate size in non intantiated templates.
|
|
__builtin_memcpy_inline(dst, src, size);
|
|
}
|