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52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <fstream>
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// basic_filebuf<charT,traits>* open(const char* s, ios_base::openmode mode);
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#include <fstream>
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#include <cassert>
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#include "platform_support.h"
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int main()
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{
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std::string temp = get_temp_file_name();
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{
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std::filebuf f;
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assert(f.open(temp.c_str(), std::ios_base::out) != 0);
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assert(f.is_open());
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assert(f.sputn("123", 3) == 3);
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}
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{
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std::filebuf f;
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assert(f.open(temp.c_str(), std::ios_base::in) != 0);
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assert(f.is_open());
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assert(f.sbumpc() == '1');
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assert(f.sbumpc() == '2');
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assert(f.sbumpc() == '3');
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}
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std::remove(temp.c_str());
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{
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std::wfilebuf f;
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assert(f.open(temp.c_str(), std::ios_base::out) != 0);
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assert(f.is_open());
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assert(f.sputn(L"123", 3) == 3);
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}
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{
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std::wfilebuf f;
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assert(f.open(temp.c_str(), std::ios_base::in) != 0);
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assert(f.is_open());
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assert(f.sbumpc() == L'1');
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assert(f.sbumpc() == L'2');
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assert(f.sbumpc() == L'3');
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}
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remove(temp.c_str());
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}
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