Spurious warning from gcc-2.1 with -g -Wall but without -O

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1 total messages Started by Ian Lance Taylor Tue, 14 Apr 1992 12:22

#400

Author: Ian Lance Taylor
Date: Tue, 14 Apr 1992 12:22

32 lines
1223 bytes

I am using gcc 2.1 configured as decstation-3100.  If the following
program is compiled with -g -Wall but without -O, it gives the
spurious error

    foo.c: In function `f':
    foo.c:25: warning: control reaches end of non-void function

This error does not appear if -O is specified, and it does not appear
if -g is not specified.

int f (int a, int b)
{
  if (a)
    {
      if (b)
	return 0;
      else
	return 1;
    }
  else
    {
      if (b)
	return 2;
      else
	return 3;
    }
}
-- 
Ian Taylor                     ian@airs.com                    uunet!airs!ian
First person to identify this quote wins a free e-mail message:
``Do you make a grievance of weighing so many pounds only, instead of three
  hundred?  Then why fret about living so many years only, instead of more?''

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