1  /* Test for -Wtraditional warnings on conversions by prototypes.
       2     Note, gcc should omit these warnings in system header files.
       3     By Kaveh R. Ghazi <ghazi@caip.rutgers.edu> 4/09/2001.  */
       4  /* { dg-do compile } */
       5  /* { dg-options "-Wtraditional-conversion" } */
       6  
       7  extern void foo_i (int);
       8  extern void foo_f (float);
       9  extern void foo_ld (long double);
      10  extern void foo_cd (__complex__ double);
      11  
      12  extern int i;
      13  extern float f;
      14  extern long double ld;
      15  extern __complex__ double cd;
      16  
      17  void
      18  testfunc1 ()
      19  {
      20    foo_i (i);
      21    foo_i (f); /* { dg-warning "as integer rather than floating" "prototype conversion warning" } */
      22    foo_i (ld); /* { dg-warning "as integer rather than floating" "prototype conversion warning" } */
      23    foo_i (cd); /* { dg-warning "as integer rather than complex" "prototype conversion warning" } */
      24  
      25    foo_f (i); /* { dg-warning "as floating rather than integer" "prototype conversion warning" } */
      26    foo_f (f); /* { dg-warning "as 'float' rather than 'double'" "prototype conversion warning" } */
      27    foo_f (ld); /* { dg-warning "as 'float' rather than 'double'" "prototype conversion warning" } */
      28    foo_f (cd); /* { dg-warning "as floating rather than complex" "prototype conversion warning" } */
      29  
      30    foo_ld (i); /* { dg-warning "as floating rather than integer" "prototype conversion warning" } */
      31    foo_ld (f); /* { dg-warning "as 'float' rather than 'double'" "small double" { target { "avr-*-*" } } } */
      32    foo_ld (ld);/* { dg-warning "as 'float' rather than 'double'" "small long double" { target { "avr-*-*" } } } */
      33    foo_ld (cd);/* { dg-warning "as floating rather than complex" "prototype conversion warning" } */
      34  
      35    foo_cd (i); /* { dg-warning "as complex rather than integer" "prototype conversion warning" } */
      36    foo_cd (f); /* { dg-warning "as complex rather than floating" "prototype conversion warning" } */
      37    foo_cd (ld); /* { dg-warning "as complex rather than floating" "prototype conversion warning" } */
      38    foo_cd (cd);
      39  }
      40    
      41  # 54 "sys-header.h" 3
      42  /* We are in system headers now, no -Wtraditional warnings should issue.  */
      43  
      44  void
      45  testfunc2 ()
      46  {
      47    foo_i (i);
      48    foo_i (f);
      49    foo_i (ld);
      50    foo_i (cd);
      51  
      52    foo_f (i);
      53    foo_f (f);
      54    foo_f (ld);
      55    foo_f (cd);
      56  
      57    foo_ld (i);
      58    foo_ld (f);
      59    foo_ld (ld);
      60    foo_ld (cd);
      61  
      62    foo_cd (i);
      63    foo_cd (f);
      64    foo_cd (ld);
      65    foo_cd (cd);
      66  }