gnu/dist/gcc4/gcc/testsuite/gcc.dg/format/array-1.c

   1 /* Test for format checking of constant arrays.  */
   2 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=gnu99 -Wformat=2" } */
   5
   6 #include "format.h"
   7
   8 const char a1[] = "foo";
   9 const char a2[] = "foo%d";
  10 const char b[3] = "foo";
  11 static const char c1[] = "foo";
  12 static const char c2[] = "foo%d";
  13 char d[] = "foo";
  14 volatile const char e[] = "foo";
  15
  16 void
  17 foo (int i, long l)
  18 {
  19   const char p1[] = "bar";
  20   const char p2[] = "bar%d";
  21   static const char q1[] = "bar";
  22   static const char q2[] = "bar%d";
  23   printf (a1);
  24   printf (a2, i);
  25   printf (a2, l); /* { dg-warning "format" "wrong type with array" } */
  26   printf (b); /* { dg-warning "unterminated" "unterminated array" } */
  27   printf (c1);
  28   printf (c2, i);
  29   printf (c2, l); /* { dg-warning "format" "wrong type with array" } */
  30   printf (p1);
  31   printf (p2, i);
  32   printf (p2, l); /* { dg-warning "format" "wrong type with array" } */
  33   printf (q1);
  34   printf (q2, i);
  35   printf (q2, l); /* { dg-warning "format" "wrong type with array" } */
  36   /* Volatile or non-constant arrays must not be checked.  */
  37   printf (d); /* { dg-warning "not a string literal" "non-const" } */
  38   printf ((const char *)e); /* { dg-warning "not a string literal" "volatile" } */
  39 }