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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libstdc++-v3/testsuite/27_io/basic_stringbuf/sync/char | |
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Diffstat (limited to 'libstdc++-v3/testsuite/27_io/basic_stringbuf/sync/char')
-rw-r--r-- | libstdc++-v3/testsuite/27_io/basic_stringbuf/sync/char/1057.cc | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/27_io/basic_stringbuf/sync/char/1057.cc b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sync/char/1057.cc new file mode 100644 index 000000000..baa93fbfd --- /dev/null +++ b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sync/char/1057.cc @@ -0,0 +1,100 @@ +// 1999-10-11 bkoz + +// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2009 +// Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + + +// 27.5.2 template class basic_streambuf + +#include <sstream> +#include <testsuite_hooks.h> + +class setpbuf : public std::stringbuf +{ + char buffer[4]; + std::string result; + +public: + + std::string& + get_result() + { return result; } + + setpbuf() + { + char foo [32]; + setp(foo, foo + 32); + setp(buffer, buffer + 4); + } + + ~setpbuf() + { sync(); } + + virtual int_type + overflow(int_type n) + { + if (sync() != 0) + return traits_type::eof(); + + result += traits_type::to_char_type(n); + + return n; + } + + virtual int + sync() + { + result.append(pbase(), pptr()); + setp(buffer, buffer + 4); + return 0; + } +}; + +// libstdc++/1057 +void test04() +{ + bool test __attribute__((unused)) = true; + std::string text = "abcdefghijklmn"; + + // 01 + setpbuf sp1; + // Here xsputn writes over sp1.result + sp1.sputn(text.c_str(), text.length()); + + // This crashes when result is accessed + sp1.pubsync(); + VERIFY( sp1.get_result() == text ); + + // 02 + setpbuf sp2; + for (std::string::size_type i = 0; i < text.length(); ++i) + { + // sputc also writes over result + sp2.sputc(text[i]); + } + + // Crash here + sp2.pubsync(); + VERIFY( sp2.get_result() == text ); +} + +int main() +{ + test04(); + return 0; +} |