libstdc++-v3/testsuite/27_io/basic_ostream/inserters_arithmetic/char/3.cc

   1 // 1999-11-15 Kevin Ediger  <kediger@licor.com>
   2 // test the floating point inserters (facet num_put)
   3
   4 // Copyright (C) 1999, 2002, 2003, 2005 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20 // USA.
  21
  22 #include <sstream>
  23 #include <limits>
  24 #include <testsuite_hooks.h>
  25
  26 template<typename T>
  27 bool
  28 test03_check(T n)
  29 {
  30   using namespace std;
  31   bool test __attribute__((unused)) = true;
  32
  33   stringbuf strbuf;
  34   ostream o(&strbuf);
  35   const char *expect;
  36
  37   if (numeric_limits<T>::digits + 1 == 16)
  38     expect = "177777 ffff";
  39   else if (numeric_limits<T>::digits + 1 == 32)
  40     expect = "37777777777 ffffffff";
  41   else if (numeric_limits<T>::digits + 1 == 64)
  42     expect = "1777777777777777777777 ffffffffffffffff";
  43   else
  44     expect = "wow, you've got some big numbers here";
  45
  46   o << oct << n << ' ' << hex << n;
  47   VERIFY ( strbuf.str() == expect );
  48
  49   return test;
  50 }
  51
  52 void
  53 test03()
  54 {
  55   short s = -1;
  56   int i = -1;
  57   long l = -1;
  58
  59   test03_check (s);
  60   test03_check (i);
  61   test03_check (l);
  62 }
  63
  64 int
  65 main()
  66 {
  67   test03();
  68   return 0;
  69 }