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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.
//
//===----------------------------------------------------------------------===//
// <streambuf>
// template <class charT, class traits = char_traits<charT> >
// class basic_streambuf;
// streamsize xsgetn(char_type* s, streamsize n);
#include <streambuf>
#include <cassert>
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()
{
test t;
char input[7] = "123456";
t.setg(input, input, input+7);
char output[sizeof(input)] = {0};
assert(t.sgetn(output, 10) == 7);
assert(strcmp(input, output) == 0);
}
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