1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <streambuf>
10
11// template <class charT, class traits = char_traits<charT> >
12// class basic_streambuf;
13
14// streamsize xsputn(const char_type* s, streamsize n);
15
16#include <streambuf>
17#include <cassert>
18#include <cstring>
19
20#include "test_macros.h"
21
22struct test
23 : public std::basic_streambuf<char>
24{
25 typedef std::basic_streambuf<char> base;
26
27 test() {}
28
29 void setp(char* pbeg, char* pend)
30 {
31 base::setp(pbeg: pbeg, pend: pend);
32 }
33};
34
35int main(int, char**)
36{
37 {
38 test t;
39 char in[] = "123456";
40 assert(t.sputn(in, sizeof(in)) == 0);
41 char out[sizeof(in)] = {0};
42 t.setp(pbeg: out, pend: out+sizeof(out));
43 assert(t.sputn(in, sizeof(in)) == sizeof(in));
44 assert(std::strcmp(in, out) == 0);
45 }
46
47 return 0;
48}
49

source code of libcxx/test/std/input.output/stream.buffers/streambuf/streambuf.virtuals/streambuf.virt.put/xsputn.pass.cpp