gomp-20050608-branch/libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/10.cc

   1 // 1999-04-12 bkoz
   2
   3 // Copyright (C) 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // 27.6.1.2.2 arithmetic extractors
  22
  23 #include <istream>
  24 #include <sstream>
  25 #include <locale>
  26 #include <testsuite_hooks.h>
  27
  28 bool test10()
  29 {
  30   std::string str_01("0 00 000 +0 +0 -0");
  31   std::stringbuf isbuf_01(str_01);
  32   std::istream is_01(&isbuf_01);
  33
  34   bool test __attribute__((unused)) = true;
  35
  36   int n = 365;
  37   is_01 >> n;
  38   VERIFY( n == 0 );
  39   n = 364;
  40   is_01 >> n;
  41   VERIFY( n == 0 );
  42   n = 363;
  43   is_01 >> n;
  44   VERIFY( n == 0 );
  45   n = 362;
  46   is_01 >> n;
  47   VERIFY( n == 0 );
  48   n = 361;
  49   is_01 >> n;
  50   VERIFY( n == 0 );
  51   n = 360;
  52   is_01 >> n;
  53   VERIFY( n == 0 );
  54   VERIFY( is_01.rdstate() == std::ios_base::eofbit );
  55
  56   std::string str_02("0x32 0X33 033 33");
  57   std::stringbuf isbuf_02(str_02);
  58   std::istream is_02(&isbuf_02);
  59   is_02.unsetf(std::ios_base::basefield);
  60   is_02 >> n;
  61   VERIFY( n == 50 );
  62   is_02 >> n;
  63   VERIFY( n == 51 );
  64   is_02 >> n;
  65   VERIFY( n == 27 );
  66   is_02 >> n;
  67   VERIFY( n == 33 );
  68   VERIFY( is_02.rdstate() == std::ios_base::eofbit );
  69
  70   std::stringbuf isbuf_03(str_02);
  71   std::istream is_03(&isbuf_03);
  72   char c;
  73   int m;
  74
  75   is_03 >> std::dec >> n >> c >> m;
  76   VERIFY( n == 0 );
  77   VERIFY( c == 'x' );
  78   VERIFY( m == 32 );
  79
  80   is_03 >> std::oct >> m >> c >> n;
  81   VERIFY( m == 0 );
  82   VERIFY( c == 'X' );
  83   VERIFY( n == 27 );
  84
  85   is_03 >> std::dec >> m >> n;
  86   VERIFY( m == 33 );
  87   VERIFY( n == 33 );
  88   VERIFY( is_03.rdstate() == std::ios_base::eofbit );
  89
  90   std::string str_04("3. 4.5E+2a5E-3 .6E1");
  91   std::stringbuf isbuf_04(str_04);
  92   std::istream is_04(&isbuf_04);
  93
  94   double f;
  95   is_04 >> f;
  96   VERIFY( f == 3.0 );
  97   is_04 >> f;
  98   VERIFY( f == 450.0 );
  99   is_04.ignore();
 100   is_04 >> f;
 101   VERIFY( f == 0.005 );
 102   is_04 >> f;
 103   VERIFY( f == 6 );
 104   VERIFY( is_03.rdstate() == std::ios_base::eofbit );
 105
 106   std::string str_05("0E20 5Ea E16");
 107   std::stringbuf isbuf_05(str_05);
 108   std::istream is_05(&isbuf_05);
 109
 110   is_05 >> f;
 111   VERIFY( f == 0 );
 112   is_05 >> f;
 113   VERIFY( f == 5.0 );
 114   VERIFY( is_05.rdstate() == std::ios_base::goodbit );
 115   is_05.clear();
 116   is_05 >> c;
 117   VERIFY( c == 'a' );
 118   is_05 >> f;
 119   VERIFY( f == 5.0 );
 120   VERIFY( is_05.rdstate() == std::ios_base::failbit );
 121   is_05.clear();
 122   is_05.ignore();
 123   is_05 >> n;
 124   VERIFY( n == 16 );
 125   return test;
 126 }
 127
 128 int main()
 129 {
 130   test10();
 131   return 0;
 132 }