1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2
3 #define NULL ((char *)0)
4
5 #if __has_builtin(__builtin_memcpy_inline)
6 #warning defined as expected
7 // expected-warning@-1 {{defined as expected}}
8 #endif
9
test_memcpy_inline_invalid_arg_types()10 void test_memcpy_inline_invalid_arg_types() {
11 __builtin_memcpy_inline(1, 2, 3); // expected-error {{cannot initialize a parameter of type 'void *' with an rvalue of type 'int'}}
12 }
13
test_memcpy_inline_null_src(void * ptr)14 void test_memcpy_inline_null_src(void *ptr) {
15 __builtin_memcpy_inline(ptr, NULL, 4); // expected-warning {{null passed to a callee that requires a non-null argument}}
16 }
17
test_memcpy_inline_null_dst(void * ptr)18 void test_memcpy_inline_null_dst(void *ptr) {
19 __builtin_memcpy_inline(NULL, ptr, 4); // expected-warning {{null passed to a callee that requires a non-null argument}}
20 }
21
test_memcpy_inline_null_buffers()22 void test_memcpy_inline_null_buffers() {
23 __builtin_memcpy_inline(NULL, NULL, 4);
24 // expected-warning@-1 {{null passed to a callee that requires a non-null argument}}
25 // expected-warning@-2 {{null passed to a callee that requires a non-null argument}}
26 }
27
test_memcpy_inline_null_buffer_is_ok_if_size_is_zero(void * ptr)28 void test_memcpy_inline_null_buffer_is_ok_if_size_is_zero(void *ptr) {
29 __builtin_memcpy_inline(ptr, NULL, /*size */ 0);
30 __builtin_memcpy_inline(NULL, ptr, /*size */ 0);
31 __builtin_memcpy_inline(NULL, NULL, /*size */ 0);
32 }
33
test_memcpy_inline_non_constant_size(void * dst,const void * src,unsigned size)34 void test_memcpy_inline_non_constant_size(void *dst, const void *src, unsigned size) {
35 __builtin_memcpy_inline(dst, src, size); // expected-error {{argument to '__builtin_memcpy_inline' must be a constant integer}}
36 }
37
38 template <unsigned size>
test_memcpy_inline_template(void * dst,const void * src)39 void test_memcpy_inline_template(void *dst, const void *src) {
40 // we do not try to evaluate size in non intantiated templates.
41 __builtin_memcpy_inline(dst, src, size);
42 }
43
test_memcpy_inline_implicit_conversion(void * ptr)44 void test_memcpy_inline_implicit_conversion(void *ptr) {
45 char a[5];
46 __builtin_memcpy_inline(ptr, a, 5);
47 __builtin_memcpy_inline(a, ptr, 5);
48 }
49
test_memcpy_inline_num_args(void * dst,void * src)50 void test_memcpy_inline_num_args(void *dst, void *src) {
51 __builtin_memcpy_inline(); // expected-error {{too few arguments to function call}}
52 __builtin_memcpy_inline(dst, src, 4, NULL); // expected-error {{too many arguments to function call}}
53 }
54