Viewing file:  vla-4.c (1.29 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* { dg-do run } */
/* { dg-options "-std=c99 -pedantic-errors" } */
/* { dg-require-effective-target alloca } */
/* PR c/18740 */
static int i;
int foo(int n)
{
int (*t)[n];
i = 0;
int j = 0;
char b[1][n+3]; /* Variable length array. */
int d[3][n]; /* Variable length array. */
sizeof (b[i++ + sizeof(j++)]); /* Outer sizeof is evaluated for vla, but not the inner one. */
if (i != 1 || j != 0)
return 1;
__typeof__(b[i++]) c1; /* typeof is evauluated when given a vm */
if (i != 2)
return 1;
__typeof__(t + (i++,0)) c2; /* typeof is evauluated when given a vm */
if (i != 3)
return 1;
__typeof__(i + (i++,0)) c3; /* typeof is not evauluated when not given a vm */
if (i != 3)
return 1;
sizeof (d[i++]); /* sizeof is evaluated for vla. */
if (i != 4)
return 1;
__alignof__(__typeof__(t + (i++,0))); /* typeof is not evauluated when given a vm inside alignof*/
if (i != 4)
return 1;
sizeof(__typeof__(t + (i++,0))); /* typeof is not evauluated when given a vm inside sizeof*/
if (i != 4)
return 1;
return 0;
}
int foo6(int a, int b[a][a], int (*c)[sizeof(*b)]) {
return sizeof (*c);
}
int main() {
int b[10][10];
int (*c)[sizeof(int)*10];
if (foo6(10, b, c) != 10*sizeof(int)*sizeof(int))
return 1;
return foo(10);
}
|
