Bug 39169 – Compiler internal error

• Product: Gentoo Linux
• Status: RESOLVED INVALID

[Description idroxid 2004-01-23 08:58:15 UTC]

I can't compile, the following snippet (yes it 's stupid!):

#include <iostream>
#include <string>

using namespace std;

int main(){
	string s;
	if(!s)
		cout << "yo!" << endl;
	return (0);
}

Compiler fails.
main.cpp: Dans function 

[Comment 1 idroxid 2004-01-23 08:58:15 UTC]

I can't compile, the following snippet (yes it 's stupid!):

#include <iostream>
#include <string>

using namespace std;

int main(){
	string s;
	if(!s)
		cout << "yo!" << endl;
	return (0);
}

Compiler fails.
main.cpp: Dans function « int main() »:
main.cpp:8: no match pour l'opérateur «
erreur interne de compilateur: erreur pour rapporter une routine ré-entée
SVP soumettre un rapport complet d'anomalies,
avec le source pré-traité si cela est approprié.

Reproducible: Always
Steps to Reproduce:
1.
2.
3.

Actual Results:  
main.cpp: Dans function « int main() »:
main.cpp:8: no match pour l'opérateur «
erreur interne de compilateur: erreur pour rapporter une routine ré-entée
SVP soumettre un rapport complet d'anomalies,
avec le source pré-traité si cela est approprié.

Expected Results:  
Say me I'm stupid to test if string is boolean.

gcc -v
Lecture des spécification à partir de /usr/lib/gcc-lib/i486-pc-linux-gnu/3.2.3/specs
Configuré avec: /var/tmp/portage/gcc-3.2.3-r1/work/gcc-3.2.3/configure
--prefix=/usr --bindir=/usr/i486-pc-linux-gnu/gcc-bin/3.2
--includedir=/usr/lib/gcc-lib/i486-pc-linux-gnu/3.2.3/include
--datadir=/usr/share/gcc-data/i486-pc-linux-gnu/3.2
--mandir=/usr/share/gcc-data/i486-pc-linux-gnu/3.2/man
--infodir=/usr/share/gcc-data/i486-pc-linux-gnu/3.2/info --enable-shared
--host=i486-pc-linux-gnu --target=i486-pc-linux-gnu --with-system-zlib
--enable-languages=c,c++,ada,f77,objc,java --enable-threads=posix
--enable-long-long --disable-checking --enable-cstdio=stdio
--enable-clocale=generic --enable-__cxa_atexit
--enable-version-specific-runtime-libs
--with-gxx-include-dir=/usr/lib/gcc-lib/i486-pc-linux-gnu/3.2.3/include/g++-v3
--with-local-prefix=/usr/local --enable-shared --enable-nls
--without-included-gettext
Modèle de thread: posix
version gcc 3.2.3 20030422 (Gentoo Linux 1.4 3.2.3-r1, propolice)

[Comment 2 Martin Schlemmer (RETIRED) 2004-01-23 09:57:27 UTC]

I get this (seems same as your french one):

--
$ g++ cxx.c -o cxx
cxx.c: In function `int main()':
cxx.c:8: error: no match for 'operator!' in '!s'
cxx.c:8: error: candidates are: operator!(bool) <built-in>
--

That is _not_ an internal compiler error.  It basically means the
string class do not have a ! operator as you used it.

I do not know what you want to do, but you code is invalid.  The only
legal use of that syntax will be:

--
#include <iostream>
#include <string>
                                                                                                                             
using namespace std;
                                                                                                                             
int main(){
        string *s = NULL;
        if(!s)
                cout << "yo!" << endl;
                                                                                                                             
        s = new(string);
        if(!s)
                cout << "yo2!" << endl;
                                                                                                                             
        delete(s);
                                                                                                                             
        return (0);
}
--