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
41
42
43
44
45
46
|
/* PR 81908 - FAIL: gfortran.dg/alloc_comp_auto_array_2.f90 -O3 -g -m32
{ dg-do compile }
{ dg-options "-O2 -Wall" } */
#define SIZE_MAX __SIZE_MAX__
typedef __SIZE_TYPE__ size_t;
void f0 (char *d, const char *s, size_t n)
{
if (n > 0 && n <= SIZE_MAX / 2 - 1)
n = 0;
__builtin_memcpy (d, s, n);
}
void f1 (char *d, const char *s, size_t n)
{
if (n > 0 && n <= SIZE_MAX / 2)
n = 0;
__builtin_memcpy (d, s, n); /* { dg-bogus "\\\[-Wstringop-overflow=]" } */
}
void f2 (char *d, const char *s, size_t n)
{
if (n > 0 && n <= SIZE_MAX / 2 + 1)
n = 0;
__builtin_memcpy (d, s, n);
}
void f3 (char *d, const char *s, size_t n)
{
if (n > 0 && n <= SIZE_MAX - 1)
n = 0;
__builtin_memcpy (d, s, n); /* { dg-bogus "\\\[-Wstringop-overflow=]" } */
}
void f4 (char *d, const char *s, size_t n)
{
if (n > 0 && n <= SIZE_MAX)
n = 0;
__builtin_memcpy (d, s, n);
}
|