46 lines
1.3 KiB
C++
46 lines
1.3 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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// <streambuf>
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// template <class charT, class traits = char_traits<charT> >
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// class basic_streambuf;
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// void pbump(int n);
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//
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// REQUIRES: long_tests
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// Unsupported for no-exceptions builds because they have no way to report an
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// allocation failure when attempting to allocate the 2GiB string.
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// UNSUPPORTED: no-exceptions
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#include <sstream>
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#include <cassert>
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#include "test_macros.h"
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struct SB : std::stringbuf
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{
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SB() : std::stringbuf(std::ios::ate|std::ios::out) { }
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const char* pubpbase() const { return pbase(); }
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const char* pubpptr() const { return pptr(); }
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};
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int main(int, char**)
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{
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try {
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std::string str(2147483648, 'a');
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SB sb;
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sb.str(str);
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assert(sb.pubpbase() <= sb.pubpptr());
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}
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catch (const std::length_error &) {} // maybe the string can't take 2GB
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catch (const std::bad_alloc &) {} // maybe we don't have enough RAM
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return 0;
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}
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