public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "me at xenu dot pl" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/101537] New: -Wconversion false positive in ternary
Date: Tue, 20 Jul 2021 17:41:52 +0000	[thread overview]
Message-ID: <bug-101537-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101537

            Bug ID: 101537
           Summary: -Wconversion false positive in ternary
           Product: gcc
           Version: 11.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: me at xenu dot pl
  Target Milestone: ---

The following code:

int foo() {
    int aaa = 1;
    unsigned char bbb = 0;
    bbb |= aaa ? 1 : 0;
    return bbb;
}

Gives this warning:

<source>: In function 'foo':
<source>:4:12: warning: conversion from 'int' to 'unsigned char' may change
value [-Wconversion]
    4 |     bbb |= aaa ? 1 : 0;
      |            ^~~
Compiler returned: 0

It happens both in C and C++ modes.

             reply	other threads:[~2021-07-20 17:41 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-20 17:41 me at xenu dot pl [this message]
2021-08-08 15:15 ` [Bug c++/101537] " nok.raven at gmail dot com
2021-08-12 23:47 ` [Bug c/101537] -Wconversion false positive in ternary and |= pinskia at gcc dot gnu.org
2021-12-31 17:25 ` thomas at habets dot se
2021-12-31 22:34 ` jakub at gcc dot gnu.org
2022-01-03 11:52 ` jakub at gcc dot gnu.org
2022-01-11 18:15 ` cvs-commit at gcc dot gnu.org
2022-01-24  9:21 ` cvs-commit at gcc dot gnu.org
2022-05-10  8:22 ` cvs-commit at gcc dot gnu.org
2023-06-29 15:31 ` wolter.hellmundvega at tevva dot com

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=bug-101537-4@http.gcc.gnu.org/bugzilla/ \
    --to=gcc-bugzilla@gcc.gnu.org \
    --cc=gcc-bugs@gcc.gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).