std::locale::operator==() inconsistent for locales with the same user-defined
facets
------------------------------------------------------------------------------------
Key: STDCXX-478
URL: https://issues.apache.org/jira/browse/STDCXX-478
Project: C++ Standard Library
Issue Type: Bug
Components: 22. Localization
Affects Versions: 4.1.2, 4.1.3
Reporter: Martin Sebor
The program below is intended to take advantage of the stdcxx extension whereby
two unnamed locales compare equal when they represent the exact same object
(i.e., when all their facets are exactly same). The program passes the first
assertion but aborts in the second one:
$ cat t.cpp && make t && ./t
#include <cassert>
#include <cstdio>
#include <locale>
struct A: std::num_put<char, char*> { A (): std::num_put<char, char*>(1) { } };
struct B: std::num_put<char, char*> { B (): std::num_put<char, char*>(1) { } };
int main ()
{
const std::locale en ("en_US");
const A* const a = new A;
const B* const b = new B;
{
const std::locale usr1 (std::locale (en, a), b);
const std::locale usr2 (std::locale (en, a), b);
std::printf ("\"%s\" == \"%s\"\n",
usr1.name ().c_str (), usr2.name ().c_str ());
assert (usr1 == usr2);
}
{
const std::locale usr1 (std::locale (en, a), b);
const std::locale usr2 (std::locale (en, b), a);
std::printf ("\"%s\" == \"%s\"\n",
usr1.name ().c_str (), usr2.name ().c_str ());
assert (usr1 == usr2);
}
}
icc -c -I/home/sebor/stdcxx/include/ansi -D_RWSTDDEBUG -D_REENTRANT
-I/home/sebor/stdcxx/include -I/build/sebor/stdcxx-icc-10.0.025-15S/include
-I/home/sebor/stdcxx/examples/include -cxxlib-nostd -g -w1 t.cpp
icc t.o -o t -cxxlib-nostd -lpthread
-L/build/sebor/stdcxx-icc-10.0.025-15S/lib -lstd15S -lcxaguard -lsupc++ -lm
"*" == "*"
"*" == "*"
t: t.cpp:32: int main(): Assertion `usr1 == usr2' failed.
Aborted
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
