Path: utzoo!utgpu!watmath!uunet!tut.cis.ohio-state.edu!NSFNET-RELAY.AC.UK!gordon%stats.ucl.ac.uk
From: gordon%stats.ucl.ac.uk@NSFNET-RELAY.AC.UK (Gordon Joly)
Newsgroups: gnu.g++.bug
Subject: Re: virtual default args problem
Message-ID: <8905051341.AA17671@AENEAS.MIT.EDU>
Date: 5 May 89 12:47:16 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: GNUs Not Usenet
Lines: 53

Tim,
Is this fixed in 1.35.0- ?
Gordon.

karl:/stats/staff/karl/gordon/c++[60] make scoobie
g++ -g  -lg++ -lm  scoobie.cc   -o scoobie
scoobie.cc:13: sorry, not implemented: that operation not supported for default parameters
g++: Program c++ got fatal signal 6.
make: *** Error 1
karl:/stats/staff/karl/gordon/c++[61] g++ -v
g++ version 1.35.0-
karl:/stats/staff/karl/gordon/c++[62] date
Fri May  5 13:44:03 BST 1989
karl:/stats/staff/karl/gordon/c++[63] cat -n scoobie.cc
     1	//The below example gives a 'Program c++ got fatal signal 6.' under
     2	// g++ version 1.34.2.
     3	// ---------
     4	#include <String.h>
     5	
     6		String blurb("bleah");
     7	
     8	class Foo
     9	{	String a;
    10	public:
    11		Foo()	{}
    12		virtual void scooby(String s=blurb)			{a=s;}
    13		virtual void doobie(String s=String("bleaurgh"))	{a=s;}
    14	};
    15	
    16	class Bar : public Foo
    17	{	String b;
    18	public:
    19		Bar()	{}
    20		virtual void scooby(String s=blurb)			{b=s;}
    21		virtual void doobie(String s=String("bleaurgh"))	{b=s;}
    22			// Above line causes problem
    23	};	
    24	
    25	main()
    26	{	Foo x;
    27		Bar y;
    28	
    29		exit(0);
    30	}
    31	// ----------
    32	// Commenting out the 'doobie' member function of 'Bar' eliminates this.
    33	// I'm not sure if this sort of default arg. should be allowed anyway since
    34	// the two 'String("bleaurgh")'s are effectively different things, but obviously
    35	// an error message of some sort is preferable
    36	// 
    37	// Tim
    38	
karl:/stats/staff/karl/gordon/c++[64]