47 lines
1.1 KiB
C++
47 lines
1.1 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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// template <class charT, class traits = char_traits<charT> >
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// class basic_ifstream
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// explicit basic_ifstream(const string& s, ios_base::openmode mode = ios_base::in);
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#include <fstream>
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#include <cassert>
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int main()
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{
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{
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std::ifstream fs(std::string("test.dat"));
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double x = 0;
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fs >> x;
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assert(x == 3.25);
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}
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{
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std::ifstream fs(std::string("test.dat"), std::ios_base::out);
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double x = 0;
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fs >> x;
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assert(x == 3.25);
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}
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{
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std::wifstream fs(std::string("test.dat"));
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double x = 0;
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fs >> x;
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assert(x == 3.25);
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}
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{
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std::wifstream fs(std::string("test.dat"), std::ios_base::out);
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double x = 0;
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fs >> x;
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assert(x == 3.25);
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}
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}
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