https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71590
Bug ID: 71590
Summary: G++ template function initialize with wrong type
Product: gcc
Version: 4.4.4
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: markowitz73 at gmail dot com
Target Milestone: ---
The source code is as below:
//source start
#include <string>
template <class T>
std::string func(T a, int b) {
std::string x;
int y;
if (b == 1) {
x = a;
} else if (b == 2) {
y = a;
}
return x;
}
int main() {
std::string c = func<int>(1, 1);
return 0;
}
//source ends
this file got compiled successfully. Since there is no overload operator=(int)
version for std::string, so I think that I may came across with a bug.
Anything maybe useful:
I tried to output the std::string object which was assigned by an integer, it
shows
that the string was initialized by a char(the first argument 1 was treated as a
char), and the output is ASCII represented by that integer.
Compile Option:
g++ -o source.cpp main
Compiler Info:
g++ -v shows:Using built-in specs.
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla
--enable-bootstrap --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-gnu-unique-object
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk
--disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre
--enable-libgcj-multifile --enable-java-maintainer-mode
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib
--with-ppl --with-cloog --with-tune=generic --with-arch_32=i686
--build=x86_64-redhat-linux
Thread model: posix
gcc version 4.4.7 20120313 (Red Hat 4.4.7-17) (GCC)
