67 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// <streambuf>10 11// template <class charT, class traits = char_traits<charT> >12// class basic_streambuf;13 14// void pbump(int n);15 16#include <streambuf>17#include <cassert>18 19#include "test_macros.h"20 21template <class CharT>22struct test23 : public std::basic_streambuf<CharT>24{25 typedef std::basic_streambuf<CharT> base;26 27 test() {}28 29 void setp(CharT* pbeg, CharT* pend)30 {31 base::setp(pbeg, pend);32 }33 34 void pbump(int n)35 {36 CharT* pbeg = base::pbase();37 CharT* pnext = base::pptr();38 CharT* pend = base::epptr();39 base::pbump(n);40 assert(base::pbase() == pbeg);41 assert(base::pptr() == pnext+n);42 assert(base::epptr() == pend);43 }44};45 46int main(int, char**)47{48 {49 test<char> t;50 char in[] = "ABCDE";51 t.setp(in, in+sizeof(in)/sizeof(in[0]));52 t.pbump(2);53 t.pbump(1);54 }55#ifndef TEST_HAS_NO_WIDE_CHARACTERS56 {57 test<wchar_t> t;58 wchar_t in[] = L"ABCDE";59 t.setp(in, in+sizeof(in)/sizeof(in[0]));60 t.pbump(3);61 t.pbump(1);62 }63#endif64 65 return 0;66}67