1  /* Test for scanf formats.  Formats using extensions to the standard
       2     should be rejected in strict pedantic mode.
       3  */
       4  /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
       5  /* { dg-do compile } */
       6  /* { dg-options "-std=iso9899:1999 -pedantic -Wformat" } */
       7  
       8  #include "format.h"
       9  
      10  void
      11  foo (int *ip, long long int *llp, wchar_t *ls)
      12  {
      13    /* The length modifiers q and L as applied to integer formats are
      14       extensions.
      15    */
      16    scanf ("%qd", llp); /* { dg-warning "C" "%q length" } */
      17    scanf ("%Ld", llp); /* { dg-warning "C" "%L length" } */
      18    /* The conversion specifiers C and S are X/Open extensions.  */
      19    scanf ("%C", ls); /* { dg-warning "C" "scanf %C" } */
      20    scanf ("%S", ls); /* { dg-warning "C" "scanf %S" } */
      21    /* The use of operand number $ formats is an X/Open extension.  */
      22    scanf ("%1$d", ip); /* { dg-warning "C" "scanf $ format" } */
      23    /* glibc also supports flags ' and I on scanf formats as an extension.  */
      24    scanf ("%'d", ip); /* { dg-warning "C" "scanf ' flag" } */
      25    scanf ("%Id", ip); /* { dg-warning "C" "scanf I flag" } */
      26  }