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48 lines
1.1 KiB
C++
48 lines
1.1 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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// <strstream>
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// class istrstream
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// explicit istrstream(const char* s);
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#include <strstream>
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#include <cassert>
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#include <string>
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#include "test_macros.h"
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int main(int, char**)
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{
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{
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const char buf[] = "123 4.5 dog";
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std::istrstream in(buf);
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int i;
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in >> i;
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assert(i == 123);
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double d;
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in >> d;
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assert(d == 4.5);
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std::string s;
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in >> s;
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assert(s == "dog");
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assert(in.eof());
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assert(!in.fail());
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in.clear();
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in.putback('g');
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assert(!in.fail());
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in.putback('g');
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assert(in.fail());
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assert(buf[9] == 'o');
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assert(buf[10] == 'g');
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}
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return 0;
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}
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