https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108538
Bug ID: 108538
Summary: unexpected -Wnarrowing errors in -fpermissive mode
Product: gcc
Version: 12.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: stsp at users dot sourceforge.net
Target Milestone: ---
int main()
{
unsigned char a[1] = { -1 };
return a[0];
}
$ g++ -fpermissive nar.cpp
nar.cpp: In function ‘int main()’:
nar.cpp:3:28: error: narrowing conversion of ‘-1’ from ‘int’ to ‘unsigned char’
[-Wnarrowing]
3 | unsigned char a[1] = { -1 };
While I know that some -Wnarrowing
warnings were promoted to an errors,
was it the right decision also in
-fpermissive mode, which accepts most
of the C code?
