Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ARISIA.XEROX.COM!klotz
From: klotz@ARISIA.XEROX.COM
Newsgroups: gnu.g++.bug
Subject: bug in g++ 1.35.1- with ({}) construct and automatic destructors
Message-ID: <8908210000.AA00725@fast.parc.xerox.com>
Date: 21 Aug 89 00:00:41 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: GNUs Not Usenet
Lines: 45

We're using G++ 1.35.1- on a Sun 330, with SunOS release 4.0.3.

The following changes have been made in configuration:
  tm.h -> tm-sparc+.h; md -> sparc.md

The value returned from the ({}) construct for blocks which have
objects with destructors is the value of the destructor (i.e., void
which yields an error).

The bug does not happen if the objects are created with the default
no-argument constructor.

Compile the following file:
----------------------------------------------------------------
#include <stdio.h>

struct fred {
  int x;
  fred(int x_val) { x = x_val; }
  ~fred() { printf("fred destroyed\n"); }
};

main()
{
  int val;

  val = ({
	   fred fred_1(100);
	   7;
	 });
  printf("Val = %d\n", val);
}
----------------------------------------------------------------

% g++ -v destruct.c -o destruct
g++ version 1.36.0-
 /import/lib/gcc-cpp -+ -v -undef -D__GNU__ -D__GNUG__ -D__GNUC__ -D__cplusplus -Dsparc -Dsun -Dunix -D__sparc__ -D__sun__ -D__unix__ destruct.c /tmp/cca00719.cpp
GNU CPP version 1.35.96
 /import/g++-1.35.1-/cc1plus /tmp/cca00719.cpp -quiet -dumpbase destruct.c -noreg -version -o /tmp/cca00719.s
GNU C++ version 1.35.1- (sparc) compiled by GNU C version 1.35.
In function int main ():
destruct.c:16: void value not ignored as it ought to be
% 

----------------------------------------------------------------