https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64079
Bug ID: 64079
Summary: pragma GCC diagnostic ignored "-Wunused-function" has
incorrect scope
Product: gcc
Version: 4.9.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: woodroof at gmail dot com
Created attachment 34121
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34121&action=edit
preprocessed file
Regression from 4.8.x
Warning "-Wunused-function" is generated even if
#pragma GCC diagnostic ignored "-Wunused-function"
is defined in place where function is declared/defined.
If there is no "pragma GCC diagnostic push/pop", no warning is generated, even
if "pragma GCC diagnostic ignored" is located at the end of a compilation unit.
*Command line*: g++ -Wall bug.cpp
*Compiler output*:
bug.cpp:11:13: warning: ‘void bar()’ defined but not used [-Wunused-function]
static void bar() {}
^
bug.cpp:7:6: warning: ‘void {anonymous}::foo()’ defined but not used
[-Wunused-function]
void foo() {}
^
*Version*:
g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.9/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu
4.9.2-0ubuntu1~14.04' --with-bugurl=file:///usr/share/doc/gcc-4.9/README.Bugs
--enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.9 --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.9 --libdir=/usr/lib --enable-nls
--with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-vtable-verify
--enable-plugin --with-system-zlib --disable-browser-plugin
--enable-java-awt=gtk --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.9-amd64/jre --enable-java-home
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.9-amd64
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.9-amd64
--with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar
--enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686
--with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib
--with-tune=generic --enable-checking=release --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.9.2 (Ubuntu 4.9.2-0ubuntu1~14.04)
