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c++/5619: std::valarray<T>::operator==(std::valarray<T>&) doesn't return bool

From: t6 at pobox dot com
To: gcc-gnats at gcc dot gnu dot org
Date: 6 Feb 2002 22:34:11 -0000
Subject: c++/5619: std::valarray<T>::operator==(std::valarray<T>&) doesn't return bool
Reply-to: t6 at pobox dot com

>Number:         5619
>Category:       c++
>Synopsis:       std::valarray<T>::operator==(std::valarray<T>&) doesn't return bool
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Wed Feb 06 14:36:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     t6@pobox.com
>Release:        gcc3.0.2 release (built from src)
>Organization:
>Environment:
Redhat linux 7.2 (i386)
gcc3.0.2 release built from source & installed
>Description:
This doesn't compile:

#include <valarray>

int main(int argc, char* argv[])
{
  std::valarray<double> a(1.2, 10);
  std::valarray<double> b(1.2, 10);

  bool equal = ( a == b);
  return int(equal);
}


Reports:
valtest.cpp: In function `int main(int, char**)':
valtest.cpp:8: cannot convert `std::_Expr<std::_BinClos<std::equal_to, 
   std::_ValArray, std::_ValArray, double, double>, bool>' to `bool' in 
   initialization


This probably applies to other valarray binary logical operators too.
-David.
>How-To-Repeat:
Compile above snippet.
>Fix:
don't use it. :)
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: application/octet-stream; name="valtest.ii"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="valtest.ii"

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