Re: c++/8053: don't called copy constructor

Re: c++/8053: don't called copy constructor

[nathan]

Synopsis: don't called copy constructor

State-Changed-From-To: open->closed
State-Changed-By: nathan
State-Changed-When: Mon Sep 30 09:56:35 2002
State-Changed-Why:
    not a bug. temporary objects can be elided

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8053

c++/8053: don't called copy constructor

[shulga]

>Number:         8053
>Category:       c++
>Synopsis:       don't called copy constructor
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Sep 25 21:46:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     shulga@ftc.ru
>Release:        gcc 3.0.2
>Organization:
>Environment:
$ uname -a
SunOS host 5.6 Generic_105181-29 sun4u sparc SUNW,Ultra-4

$ gcc -v
Reading specs from /usr/local/gcc302/lib/gcc-lib/sparc-sun-solaris2.6/3.0.2/specs
Configured with: ./configure --prefix=/usr/local/gcc302 --enable-languages=c,c++ --enable-threads=posix
Thread model: posix
gcc version 3.0.2
>Description:
There is no copy constructor call after calling c1(int) constructor in the statement c=c1(100).
>How-To-Repeat:
#include <stdio.h>

class c1 {
public:
  c1(const c1& c) {
    fprintf(stderr,"call c1(const c1&)\n");
  }
  c1(int aa) {
    fprintf(stderr,"call c1(int)\n");
  }
};

int main()
{
  c1 c=c1(10);
}
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: