[Bug c++/90353] New: No warning on unused exception parameter with -Wall -Wextra

[mark.z.harrison at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90353

            Bug ID: 90353
           Summary: No warning on unused exception parameter with -Wall
                    -Wextra
           Product: gcc
           Version: 8.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mark.z.harrison at gmail dot com
  Target Milestone: ---

Created attachment 46295
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46295&action=edit
Source file demonstrating bug

~ > cat unused.cpp 
int main()
{
    try
    {
        throw 0;
    }
    catch(int k)
    {
    }

    return 0;
}


Compile with: g++ -Wall -Wextra unused.cpp

No warnings are produced about the unused exception parameter k.

===============

Version: 8.3.0

System: Manjaro Linux (variant of Arch Linux)

Configured with: /build/gcc/src/gcc/configure --prefix=/usr --libdir=/usr/lib
--libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info
--with-bugurl=https://bugs.archlinux.org/
--enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared
--enable-threads=posix --enable-libmpx --with-system-zlib --with-isl
--enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu
--disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object
--enable-linker-build-id --enable-lto --enable-plugin
--enable-install-libiberty --with-linker-hash-style=gnu
--enable-gnu-indirect-function --enable-multilib --disable-werror
--enable-checking=release --enable-default-pie --enable-default-ssp
--enable-cet=auto