>Submitter-Id: net >Originator: Thomas Richter >Organization: >Confidential: no >Synopsis: g++-3.3 -Winline broken >Severity: serious >Priority: medium >Category: c++ >Class: sw-bug >Release: 3.3 20030509 (Debian prerelease) >Environment: System: Linux skywise 2.4.20 #7 Thu May 15 19:53:29 CEST 2003 i686 unknown Architecture: i686
<machine, os, target, libraries (multiple lines)>
host: i386-pc-linux-gnu
build: i386-pc-linux-gnu
target: i386-pc-linux-gnu
configured with: ../src/configure -v --enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-clocale=gnu --enable-debug --enable-java-gc=boehm --enable-java-awt=xlib --enable-objc-gc i386-linux
>Description:
g++-3.3 -Winline generates warnings for functions it cannot inline
that it shouldn't even try to inline because they are neither declared as "inline", nor defined in the class body.
>How-To-Repeat:
Save the following as "main.cpp"
/* snip */
#include "foo.hpp"
int main(int,char)
{
return foo();
}
/* snip */
Save the following as "foo.hpp"
/* snip */
int foo(void);
/* snip */
Save the following as "foo.cpp"
/* snip */
int foo(void)
{
return 0;
}
/* snip */
Then compile with
$ g++-3.3 -O3 -Winline main.cpp new.cpp
Result is a useless warning that int foo(void) could not be inlined. (Correct, but supposed not to be inline-able).
>Fix:
Avoid "-Winline"
