#include <stdio.h>
#include <functional>
int main(int argc, char *argv[]) {
std::function<void* ()> f = 0;
if (f != 0) {}
return 0;
}
gcc -std=gnu++0x testcase.cpp
$ gcc -std=gnu++0x testcase.cpp
In file included from
/opt/gcc-trunk/lib/gcc/i686-pc-cygwin/4.5.0/include/c++/fu
nctional:70,
from testcase.cpp:2:
/opt/gcc-trunk/lib/gcc/i686-pc-cygwin/4.5.0/include/c++/tr1_impl/functional: In
function 'bool std::operator!=(const std::function<_Signature>&,
std::_M_clear_t
ype*) [with _Signature = void*()]':
testcase.cpp:8: instantiated from here
/opt/gcc-trunk/lib/gcc/i686-pc-cygwin/4.5.0/include/c++/tr1_impl/functional:2116
: error: could not convert '__f' to 'bool'
--
Summary: [C++0x] Invalid conwersion to bool is reported
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: piotr dot wyderski at gmail dot com
GCC host triplet: Cygwin/GCC-trunk rev. 147886
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40273
