You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
46 lines
1.0 KiB
C++
46 lines
1.0 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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;
|
|
}
|