https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103983
Bug ID: 103983
Summary: -Wswitch-bool seems to do nothing ?
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
clang has a warning -Wswitch-bool. There are three cases of
it in Fedora rawhide.
However, gcc doesn't say anything. See this code:
void g( int);
void f( bool b)
{
switch (b)
{
case false:
g( 1);
break;
case true:
g( 2);
break;
}
}
$ /home/dcb/gcc/results/bin/gcc -c -O2 -Wall -Wextra -Wswitch-bool -pedantic
jan11b.cc
$ clang++ -g -O2 -Wall jan11b.cc
jan11b.cc:9:2: warning: switch condition has boolean value [-Wswitch-bool]
switch (b)
^ ~
1 warning generated.
