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Diffstat (limited to 'libstdc++-v3/testsuite/27_io/fpos/2.cc')
-rw-r--r-- | libstdc++-v3/testsuite/27_io/fpos/2.cc | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/27_io/fpos/2.cc b/libstdc++-v3/testsuite/27_io/fpos/2.cc new file mode 100644 index 00000000000..46c64b8bef5 --- /dev/null +++ b/libstdc++-v3/testsuite/27_io/fpos/2.cc @@ -0,0 +1,103 @@ +// 1999-09-20 bkoz + +// Copyright (C) 1999, 2001, 2003 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 2, 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 COPYING. If not, write to the Free +// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, +// USA. + +// As a special exception, you may use this file as part of a free software +// library without restriction. Specifically, if other files instantiate +// templates or use macros or inline functions from this file, or you compile +// this file and link it with other files to produce an executable, this +// file does not by itself cause the resulting executable to be covered by +// the GNU General Public License. This exception does not however +// invalidate any other reasons why the executable file might be covered by +// the GNU General Public License. + +// 27.4.3 template class fpos + +#include <cwchar> // for mbstate_t +#include <ios> +#include <testsuite_hooks.h> + +// 27.4.3.2 fpos requirements/invariants +void test02() +{ + bool test = true; + + typedef std::mbstate_t state_type; + state_type state01; + state_type state02; + + std::streamoff off01; + std::streamoff off02 = 997; + + int i01 = 0; + int i02 = 999; + + // p(i), p = i + std::streampos pos01(i02); + std::streampos pos02 = i02; + VERIFY( pos01 == pos02 ); + + // p(o), p = o + // NB: P(o) is only required. + std::streampos pos03(off02); + std::streampos pos04 = off02; + VERIFY( pos03 == pos04 ); + + // O(p) + std::streamoff off03(pos04); + VERIFY( off03 == off02 ); + + // p == q, p!= q + VERIFY( pos01 == pos02 ); + VERIFY( pos02 != pos03 ); + + // q = p + o + // p += o + pos03 = pos03 + off02; + pos04 += off02; + VERIFY( pos03 == pos04 ); + std::streampos pos05 = pos03; + std::streampos pos06 = pos03 + off02; + VERIFY ( pos05 == pos03 ); + + // q = p - o + // p -= o + pos03 = pos03 - off02; + pos04 -= off02; + VERIFY( pos03 == pos04 ); + std::streampos pos07 = pos03; + std::streampos pos08 = pos03 - off02; + VERIFY ( pos07 == pos03 ); + + // o = p - q + VERIFY( 0 == pos03 - pos04 ); + + // streamsize -> streamoff + // streamoff -> streamsize + off01 = off02; + std::streamsize size01(off02); + std::streamoff off04(size01); + VERIFY( off01 == off04 ); +} + +int main() +{ + test02(); + return 0; +} |