OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [c90-const-expr-5.c] - Blame information for rev 154

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 149 jeremybenn
/* Test null pointer constants: typedefs for void should be OK but not
2
   qualified void.  */
3
/* Origin: Joseph Myers <joseph@codesourcery.com> */
4
/* { dg-do compile } */
5
/* { dg-options "-std=iso9899:1990 -pedantic-errors" } */
6
 
7
typedef void V;
8
int *p;
9
long *q;
10
int j;
11
void (*fp)(void);
12
 
13
void
14
f (void)
15
{
16
  /* (V *)0 is a null pointer constant, so the assignment should be
17
     diagnosed.  */
18
  q = (j ? p : (V *)0); /* { dg-error "error: assignment from incompatible pointer type" } */
19
  q = (j ? p : (void *)0); /* { dg-error "error: assignment from incompatible pointer type" } */
20
  /* And this conversion should be valid.  */
21
  (void (*)(void))(V *)0;
22
  (void (*)(void))(void *)0;
23
  /* Pointers to qualified void are not valid null pointer
24
     constants.  */
25
  fp = (const void *)0; /* { dg-error "error: ISO C forbids assignment between function pointer and 'void \\*'" } */
26
  fp = (void *)0;
27
  fp = (V *)0;
28
  fp = 0;
29
  fp == 0;
30
 
31
  fp == (void *)0;
32
  (void *)0 == fp;
33
  fp == (V *)0;
34
  (V *)0 == fp;
35
  fp == (V *)1; /* { dg-error "error: ISO C forbids comparison of 'void \\*' with function pointer" } */
36
  (V *)1 == fp; /* { dg-error "error: ISO C forbids comparison of 'void \\*' with function pointer" } */
37
  fp == (const void *)0; /* { dg-error "error: ISO C forbids comparison of 'void \\*' with function pointer" } */
38
  (const void *)0 == fp; /* { dg-error "error: ISO C forbids comparison of 'void \\*' with function pointer" } */
39
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.