libstdc++-v3/testsuite/21_strings/basic_string/cons/char/1.cc

   1 // 1999-06-04 bkoz
   2
   3 // Copyright (C) 1999, 2000, 2001, 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // 21.3.1 basic_string constructors.
  22
  23 #include <new>
  24 #include <string>
  25 #include <stdexcept>
  26 #include <testsuite_hooks.h>
  27
  28 void test01(void)
  29 {
  30   bool test __attribute__((unused)) = true;
  31   typedef std::string::size_type csize_type;
  32   typedef std::string::iterator citerator;
  33   csize_type npos = std::string::npos;
  34   csize_type csz01;
  35
  36   const char str_lit01[] = "rodeo beach, marin";
  37   const std::string str01(str_lit01);
  38   const std::string str02("baker beach, san francisco");
  39
  40   // basic_string(const string&, size_type pos = 0, siz_type n = npos, alloc)
  41   csz01 = str01.size();
  42   try {
  43     std::string str03(str01, csz01 + 1);
  44     VERIFY( false );
  45   }
  46   catch(std::out_of_range& fail) {
  47     VERIFY( true );
  48   }
  49   catch(...) {
  50     VERIFY( false );
  51   }
  52
  53   try {
  54     std::string str03(str01, csz01);
  55     VERIFY( str03.size() == 0 );
  56     VERIFY( str03.size() <= str03.capacity() );
  57   }
  58   catch(...) {
  59     VERIFY( false );
  60   }
  61
  62   // basic_string(const char* s, size_type n, alloc)
  63   csz01 = str01.max_size();
  64   // NB: As strlen(str_lit01) != csz01, this test is undefined. It
  65   // should not crash, but what gets constructed is a bit arbitrary.
  66   try {
  67     std::string str03(str_lit01, csz01 + 1);
  68     VERIFY( true );
  69   }
  70   catch(std::length_error& fail) {
  71     VERIFY( true );
  72   }
  73   catch(...) {
  74     VERIFY( false );
  75   }
  76
  77   // NB: As strlen(str_lit01) != csz01, this test is undefined. It
  78   // should not crash, but what gets constructed is a bit arbitrary.
  79   // The "maverick's" of all string objects.
  80   try {
  81     std::string str04(str_lit01, npos);
  82     VERIFY( true );
  83   }
  84   catch(std::length_error& fail) {
  85     VERIFY( true );
  86   }
  87   catch(...) {
  88     VERIFY( false );
  89   }
  90
  91   // Build a maxsize - 1 lengthed string consisting of all A's
  92   try {
  93     std::string str03(csz01 - 1, 'A');
  94     VERIFY( str03.size() == csz01 - 1 );
  95     VERIFY( str03.size() <= str03.capacity() );
  96   }
  97   // NB: bad_alloc is regrettable but entirely kosher for
  98   // out-of-memory situations.
  99   catch(std::bad_alloc& fail) {
 100     VERIFY( true );
 101   }
 102   catch(...) {
 103     VERIFY( false );
 104   }
 105
 106   // basic_string(const char* s, const allocator& a = allocator())
 107   std::string str04(str_lit01);
 108   VERIFY( str01 == str04 );
 109
 110
 111   // basic_string(size_type n, char c, const allocator& a = allocator())
 112   csz01 = str01.max_size();
 113   try {
 114     std::string str03(csz01 + 1, 'z');
 115     VERIFY( false );
 116   }
 117   catch(std::length_error& fail) {
 118     VERIFY( true );
 119   }
 120   catch(...) {
 121     VERIFY( false );
 122   }
 123
 124   try {
 125     std::string str04(npos, 'b'); // the "maverick's" of all string objects.
 126     VERIFY( false );
 127   }
 128   catch(std::length_error& fail) {
 129     VERIFY( true );
 130   }
 131   catch(...) {
 132     VERIFY( false );
 133   }
 134
 135   try {
 136     std::string str03(csz01 - 1, 'z');
 137     VERIFY( str03.size() != 0 );
 138     VERIFY( str03.size() <= str03.capacity() );
 139   }
 140   // NB: bad_alloc is regrettable but entirely kosher for
 141   // out-of-memory situations.
 142   catch(std::bad_alloc& fail) {
 143     VERIFY( true );
 144   }
 145   catch(...) {
 146     VERIFY( false );
 147   }
 148
 149
 150   // template<typename _InputIter>
 151   //   basic_string(_InputIter begin, _InputIter end, const allocator& a)
 152   std::string str06(str01.begin(), str01.end());
 153   VERIFY( str06 == str01 );
 154 }
 155
 156 int main()
 157 {
 158   __gnu_test::set_memory_limits();
 159   test01();
 160   return 0;
 161 }