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From: "me at xenu dot pl" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/101537] New: -Wconversion false positive in ternary
Date: Tue, 20 Jul 2021 17:41:52 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101537

            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 =3D 1;
    unsigned char bbb =3D 0;
    bbb |=3D 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 |=3D aaa ? 1 : 0;
      |            ^~~
Compiler returned: 0

It happens both in C and C++ modes.=