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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// REQUIRES: locale.en_US.UTF-8
// <streambuf>
// template <class charT, class traits = char_traits<charT> >
// class basic_streambuf;
// void swap(basic_streambuf& rhs);
#include <streambuf>
#include <cassert>
#include "test_macros.h"
#include "platform_support.h" // locale name macros
template <class CharT>
struct test
: public std::basic_streambuf<CharT>
{
typedef std::basic_streambuf<CharT> base;
test() {}
void swap(test& t)
{
test old_this(*this);
test old_that(t);
base::swap(t);
assert(this->eback() == old_that.eback());
assert(this->gptr() == old_that.gptr());
assert(this->egptr() == old_that.egptr());
assert(this->pbase() == old_that.pbase());
assert(this->pptr() == old_that.pptr());
assert(this->epptr() == old_that.epptr());
assert(this->getloc() == old_that.getloc());
assert(t.eback() == old_this.eback());
assert(t.gptr() == old_this.gptr());
assert(t.egptr() == old_this.egptr());
assert(t.pbase() == old_this.pbase());
assert(t.pptr() == old_this.pptr());
assert(t.epptr() == old_this.epptr());
assert(t.getloc() == old_this.getloc());
}
void setg(CharT* gbeg, CharT* gnext, CharT* gend)
{
base::setg(gbeg, gnext, gend);
}
void setp(CharT* pbeg, CharT* pend)
{
base::setp(pbeg, pend);
}
};
int main(int, char**)
{
{
test<char> t;
test<char> t2;
t2.swap(t);
}
{
test<wchar_t> t;
test<wchar_t> t2;
t2.swap(t);
}
{
char g1, g2, g3, p1, p3;
test<char> t;
t.setg(&g1, &g2, &g3);
t.setp(&p1, &p3);
test<char> t2;
t2.swap(t);
}
{
wchar_t g1, g2, g3, p1, p3;
test<wchar_t> t;
t.setg(&g1, &g2, &g3);
t.setp(&p1, &p3);
test<wchar_t> t2;
t2.swap(t);
}
std::locale::global(std::locale(LOCALE_en_US_UTF_8));
{
test<char> t;
test<char> t2;
t2.swap(t);
}
{
test<wchar_t> t;
test<wchar_t> t2;
t2.swap(t);
}
return 0;
}
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