(root)/
gcc-13.2.0/
gcc/
testsuite/
gcc.dg/
c99-impl-decl-1.c
       1  /* Test for implicit function declaration: in C90 only.  */
       2  /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
       3  /* { dg-do compile } */
       4  /* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
       5  
       6  void
       7  foo (void)
       8  {
       9    bar (); /* { dg-bogus "warning" "warning in place of error" } */
      10   /* { dg-error "implicit" "C99 implicit declaration error" { target *-*-* } .-1 } */
      11  }
      12  
      13  /* C90 subclause 7.1.7 says we can implicitly declare strcmp; C99 removes
      14     implict declarations.
      15  */
      16  int
      17  bar (const char *a, const char *b)
      18  {
      19    return strcmp (a, b); /* { dg-bogus "warning" "warning in place of error" } */
      20    /* { dg-error "implicit" "C99 implicit declaration error" { target *-*-* } .-1 } */
      21  }