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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <ios>
// template <class charT, class traits> class basic_ios
// locale imbue(const locale& loc);
#include <ios>
#include <streambuf>
#include <cassert>
struct testbuf
: public std::streambuf
{
};
bool f1_called = false;
bool f2_called = false;
bool f3_called = false;
void f1(std::ios_base::event ev, std::ios_base& stream, int index)
{
if (ev == std::ios_base::imbue_event)
{
assert(!f1_called);
assert( f2_called);
assert( f3_called);
assert(stream.getloc().name() == "en_US.UTF-8");
assert(index == 4);
f1_called = true;
}
}
void f2(std::ios_base::event ev, std::ios_base& stream, int index)
{
if (ev == std::ios_base::imbue_event)
{
assert(!f1_called);
assert(!f2_called);
assert( f3_called);
assert(stream.getloc().name() == "en_US.UTF-8");
assert(index == 5);
f2_called = true;
}
}
void f3(std::ios_base::event ev, std::ios_base& stream, int index)
{
if (ev == std::ios_base::imbue_event)
{
assert(!f1_called);
assert(!f2_called);
assert(!f3_called);
assert(stream.getloc().name() == "en_US.UTF-8");
assert(index == 6);
f3_called = true;
}
}
int main()
{
{
std::ios ios(0);
ios.register_callback(f1, 4);
ios.register_callback(f2, 5);
ios.register_callback(f3, 6);
std::locale l = ios.imbue(std::locale("en_US.UTF-8"));
assert(l.name() == std::string("C"));
assert(ios.getloc().name() == std::string("en_US.UTF-8"));
assert(f1_called);
assert(f2_called);
assert(f3_called);
}
f1_called = false;
f2_called = false;
f3_called = false;
{
testbuf sb;
std::ios ios(&sb);
ios.register_callback(f1, 4);
ios.register_callback(f2, 5);
ios.register_callback(f3, 6);
std::locale l = ios.imbue(std::locale("en_US.UTF-8"));
assert(l.name() == std::string("C"));
assert(ios.getloc().name() == std::string("en_US.UTF-8"));
assert(sb.getloc().name() == std::string("en_US.UTF-8"));
assert(f1_called);
assert(f2_called);
assert(f3_called);
}
}
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