1  /* Spurious uninit variable warnings, case 3.
       2     Inspired by cppexp.c (parse_charconst) */
       3  /* { dg-do compile } */
       4  /* { dg-options "-O -Wuninitialized" } */
       5  
       6  extern void error (char *);
       7  
       8  int
       9  parse_charconst (const char *start, const char *end)
      10  {
      11    int c; /* { dg-bogus "c" "uninitialized variable warning" } */
      12    int nchars, retval;
      13  
      14    nchars = 0;
      15    retval = 0;
      16    while (start < end)
      17      {
      18        c = *start++;
      19        if (c == '\'')
      20  	break;
      21        nchars++;
      22        retval += c;
      23        retval <<= 8;
      24      }
      25  
      26    if (nchars == 0)
      27      return 0;
      28  
      29    if (c != '\'')
      30      error ("malformed character constant");
      31  
      32    return retval;
      33  }