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53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <fstream>
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// template <class charT, class traits = char_traits<charT> >
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// class basic_fstream
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// void open(const char* s, ios_base::openmode mode = ios_base::in|ios_base::out);
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#include <fstream>
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#include <cassert>
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#include "test_macros.h"
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#include "platform_support.h"
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int main(int, char**)
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{
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std::string temp = get_temp_file_name();
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{
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std::fstream fs;
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assert(!fs.is_open());
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fs.open(temp.c_str(), std::ios_base::in | std::ios_base::out
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| std::ios_base::trunc);
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assert(fs.is_open());
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double x = 0;
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fs << 3.25;
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fs.seekg(0);
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fs >> x;
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assert(x == 3.25);
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}
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std::remove(temp.c_str());
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{
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std::wfstream fs;
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assert(!fs.is_open());
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fs.open(temp.c_str(), std::ios_base::in | std::ios_base::out
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| std::ios_base::trunc);
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assert(fs.is_open());
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double x = 0;
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fs << 3.25;
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fs.seekg(0);
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fs >> x;
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assert(x == 3.25);
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}
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std::remove(temp.c_str());
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return 0;
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}
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