| // 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 __attribute__((unused)) = true; |
| |
| typedef std::mbstate_t state_type; |
| |
| std::streamoff off01; |
| std::streamoff off02 = 997; |
| 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; |
| } |