File: memset-array.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A12.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 959,712 kB
  • sloc: cpp: 3,275,382; ansic: 2,061,766; ada: 840,956; f90: 208,513; makefile: 76,132; asm: 73,433; xml: 50,448; exp: 34,146; sh: 32,436; objc: 15,637; fortran: 14,012; python: 11,991; pascal: 6,787; awk: 4,779; perl: 3,054; yacc: 338; ml: 285; lex: 201; haskell: 122
file content (36 lines) | stat: -rw-r--r-- 571 bytes parent folder | download | duplicates (6) 
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
 
/* { dg-do compile } */
/* { dg-options "-Wmemset-elt-size" } */
enum a {
  a_1,
  a_2,
  a_n
};
int t1[20];
int t2[a_n];

struct s
{
  int t[20];
};

void foo (struct s *s)
{
  __builtin_memset (t1, 0, 20); /* { dg-warning "element size" } */
  __builtin_memset (t2, 0, a_n); /* { dg-warning "element size" } */
  __builtin_memset (s->t, 0, 20); /* { dg-warning "element size" } */
}

char u1[20];
char u2[a_n];

struct s2
{
  char u[20];
};

void bar (struct s2 *s)
{
  __builtin_memset (u1, 0, 20);
  __builtin_memset (u2, 0, a_n);
  __builtin_memset (s->u, 0, 20);
}