File: builtins-memset-inline.cpp

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (40 lines) | stat: -rw-r--r-- 1,500 bytes parent folder | download | duplicates (13)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
// RUN: %clang_cc1 -fsyntax-only -verify %s

#define NULL ((char *)0)

#if __has_builtin(__builtin_memset_inline)
#warning defined as expected
// expected-warning@-1 {{defined as expected}}
#endif

void test_memset_inline_invalid_arg_types() {
  __builtin_memset_inline(1, 2, 3); // expected-error {{cannot initialize a parameter of type 'void *' with an rvalue of type 'int'}}
}

void test_memset_inline_null_dst(void *ptr) {
  __builtin_memset_inline(NULL, 1, 4); // expected-warning {{null passed to a callee that requires a non-null argument}}
}

void test_memset_inline_null_buffer_is_ok_if_size_is_zero(void *ptr, char value) {
  __builtin_memset_inline(NULL, value, /*size */ 0);
}

void test_memset_inline_non_constant_size(void *dst, char value, unsigned size) {
  __builtin_memset_inline(dst, value, size); // expected-error {{argument to '__builtin_memset_inline' must be a constant integer}}
}

template <unsigned size>
void test_memset_inline_template(void *dst, char value) {
  // we do not try to evaluate size in non intantiated templates.
  __builtin_memset_inline(dst, value, size);
}

void test_memset_inline_implicit_conversion(void *ptr, char value) {
  char a[5];
  __builtin_memset_inline(a, value, 5);
}

void test_memset_inline_num_args(void *dst, char value) {
  __builtin_memset_inline();                    // expected-error {{too few arguments to function call}}
  __builtin_memset_inline(dst, value, 4, NULL); // expected-error {{too many arguments to function call}}
}