1  /* { dg-do compile } */
       2  /* { dg-options "-Wall -Wshadow -fshow-column" } */
       3  
       4  extern double strtod (const char *, char **);
       5  #define UNUSED __attribute__ ((unused))
       6  
       7  /* A built-in function may be overridden by an old-style definition
       8     specifying too few arguments... */
       9  double cos ()  /* { dg-warning "shadows a built-in|number of arguments" } */ 
      10  {
      11    return strtod ("nan", 0);
      12  }
      13  
      14  /* the right number, but the wrong type, arguments... */
      15  double sin (foo)  /* { dg-warning "8:shadows a built-in" } */
      16       int foo UNUSED; /* { dg-warning "10:argument 'foo' doesn't match built-in prototype" } */
      17  {
      18    return strtod ("nan", 0);
      19  }
      20  
      21  /* or too many arguments.  */
      22  long double cosl (foo, bar)  /* { dg-warning "shadows a built-in|number of arguments" } */
      23       const char *foo UNUSED; /* { dg-warning "18:argument 'foo' doesn't match" } */
      24       int bar UNUSED;
      25  {
      26    return strtod ("nan", 0);
      27  }