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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
//
//===----------------------------------------------------------------------===//
// <streambuf>
// template <class charT, class traits = char_traits<charT> >
// class basic_streambuf;
// streamsize xsgetn(char_type* s, streamsize n);
#include <streambuf>
#include <cassert>
#include <cstring>
#include "test_macros.h"
struct test
: public std::basic_streambuf<char>
{
typedef std::basic_streambuf<char> base;
test() {}
void setg(char* gbeg, char* gnext, char* gend)
{
base::setg(gbeg, gnext, gend);
}
};
int main(int, char**)
{
test t;
char input[7] = "123456";
t.setg(input, input, input+7);
char output[sizeof(input)] = {0};
assert(t.sgetn(output, 10) == 7);
assert(std::strcmp(input, output) == 0);
return 0;
}
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