X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=libstdc%2B%2B-v3%2Ftestsuite%2F27_io%2Fbasic_ostream%2Fseekp%2Fchar%2F2346-fstream.cc;fp=libstdc%2B%2B-v3%2Ftestsuite%2F27_io%2Fbasic_ostream%2Fseekp%2Fchar%2F2346-fstream.cc;h=36fa2c03e2a0fbb8d75e8b2284112dd46d30dbcb;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=0000000000000000000000000000000000000000;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/libstdc++-v3/testsuite/27_io/basic_ostream/seekp/char/2346-fstream.cc b/libstdc++-v3/testsuite/27_io/basic_ostream/seekp/char/2346-fstream.cc new file mode 100644 index 00000000..36fa2c03 --- /dev/null +++ b/libstdc++-v3/testsuite/27_io/basic_ostream/seekp/char/2346-fstream.cc @@ -0,0 +1,92 @@ +// 2000-06-29 bkoz + +// Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009 +// Free Software Foundation +// +// 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 +// . + +// 27.6.2.4 basic_ostream seek members [lib.ostream.seeks] +// @require@ %-*.tst %-*.txt +// @diff@ %-*.tst %-*.txt + +// { dg-require-fileio "" } + +#include +#include +#include +#include +#include + +const char* s = " lootpack, peanut butter wolf, rob swift, madlib, quasimoto"; +const int times = 10; + +void write_rewind(std::iostream& stream) +{ + bool test __attribute__((unused)) = true; + + for (int j = 0; j < times; j++) + { + std::streampos begin = stream.tellp(); + + for (int i = 0; i < times; ++i) + stream << j << '-' << i << s << '\n'; + + stream.seekp(begin); + } + VERIFY( stream.good() ); +} + +void check_contents(std::iostream& stream) +{ + bool test __attribute__((unused)) = true; + + stream.clear(); + stream.seekg(0, std::ios::beg); + int i = 0; + int loop = times * times + 2; + while (i < loop) + { + stream.ignore(80, '\n'); + if (stream.good()) + ++i; + else + break; + } + VERIFY( i == times ); +} + +// fstream +// libstdc++/2346 +void test02() +{ + std::fstream ofstrm; + ofstrm.open("istream_seeks-3.txt", std::ios::out); + if (!ofstrm) + std::abort(); + write_rewind(ofstrm); + ofstrm.close(); + + std::fstream ifstrm; + ifstrm.open("istream_seeks-3.txt", std::ios::in); + check_contents(ifstrm); + ifstrm.close(); +} + +int main() +{ + test02(); + return 0; +}