54 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -verify %s2 3#define NULL ((char *)0)4 5#if __has_builtin(__builtin_memcpy_inline)6#warning defined as expected7// expected-warning@-1 {{defined as expected}}8#endif9 10void 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 14void 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 18void 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 22void 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 28void 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 34void 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 38template <unsigned size>39void 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 44void 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 50void 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