From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 80B29385703F; Thu, 20 Jul 2023 06:46:39 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 80B29385703F
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1689835599;
	bh=Y+TnR/UJdo/9VQpYa1URtlSXstTdViV9+Z/3ttO6kSo=;
	h=From:To:Subject:Date:From;
	b=bnX4legdA8jFDLD/JI+pfX+NIQTQME2/+QmCeLLJIGDcGjmwbYFXawdK2TVLh3N5D
	 JnOqRLZp+gOk+GlcxgxMIEk+qkFTyemQvia8ZFBt+7Ri3W79DrEAjX+J8ZKyUEW+CN
	 cw4tWX59dnOn39/LRlrTXDVz+iUojykJF0ZAD73c=
From: "alexsyrezerv at mail dot ru" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/110749] New: wrong show float
Date: Thu, 20 Jul 2023 06:46:39 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: unknown
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: alexsyrezerv at mail dot ru
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter target_milestone
 attachments.created
Message-ID: <bug-110749-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110749

            Bug ID: 110749
           Summary: wrong show float
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: alexsyrezerv at mail dot ru
  Target Milestone: ---

Created attachment 55586
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D55586&action=3Dedit
To try on different compillers

Code:
```
#include <iostream>
#include <iomanip>

void func_float_point(std::ostream& os, const double& value, const std::siz=
e_t&
size) {
  os << (0.0 > value ? '-' : '0') << std::setw(size - 1) << std::setfill('0=
')
<< std::abs(value);
}

int main(int, char**) {
  const double a[] =3D {90.8425, 101.9225};
  for(std::size_t i =3D 0; i < 2; ++i){
    func_float_point(std::cout, a[i], 17);
    std::cout << std::endl;
  }

  return 0;
}
```
result
```
butiaev@butiaev-VirtualBox:~/tmp$ make bug
g++     bug.cpp   -o bug
butiaev@butiaev-VirtualBox:~/tmp$ ./bug
000000000090.8425
0000000000101.922
butiaev@butiaev-VirtualBox:~/tmp$

```=