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/* Spurious uninit variable warnings, case 3.

   Inspired by cppexp.c (parse_charconst) */

/* { dg-do compile } */

/* { dg-options "-O -Wuninitialized" } */

extern void error (char *);

int

parse_charconst (const char *start, const char *end)

{

  int c; /* { dg-bogus "c" "uninitialized variable warning" } */

  int nchars, retval;

  nchars = 0;

  retval = 0;

  while (start < end)

    {

      c = *start++;

      if (c == '\'')

        break;

      nchars++;

      retval += c;

      retval <<= 8;

    }

  if (nchars == 0)

    return 0;

  if (c != '\'')

    error ("malformed character constant");

  return retval;

}