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

   1 // 1999-06-04 bkoz
   2
   3 // Copyright (C) 1999-2020 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 3, 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 COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 21.3.1 basic_string constructors.
  21
  22 #include <new>
  23 #include <string>
  24 #include <stdexcept>
  25 #include <testsuite_hooks.h>
  26
  27 void test01(void)
  28 {
  29   typedef std::wstring::size_type csize_type;
  30   typedef std::wstring::iterator citerator;
  31   csize_type npos = std::wstring::npos;
  32   csize_type csz01;
  33
  34   const wchar_t str_lit01[] = L"rodeo beach, marin";
  35   const std::wstring str01(str_lit01);
  36   const std::wstring str02(L"baker beach, san francisco");
  37
  38   // basic_string(const wstring&, size_type pos = 0, siz_type n = npos, alloc)
  39   csz01 = str01.size();
  40   try {
  41     std::wstring str03(str01, csz01 + 1);
  42     VERIFY( false );
  43   }
  44   catch(std::out_of_range& fail) {
  45     VERIFY( true );
  46   }
  47   catch(...) {
  48     VERIFY( false );
  49   }
  50
  51   try {
  52     std::wstring str03(str01, csz01);
  53     VERIFY( str03.size() == 0 );
  54     VERIFY( str03.size() <= str03.capacity() );
  55   }
  56   catch(...) {
  57     VERIFY( false );
  58   }
  59
  60   // basic_string(const wchar_t* s, size_type n, alloc)
  61   csz01 = str01.max_size();
  62   // NB: As strlen(str_lit01) != csz01, this test is undefined. It
  63   // should not crash, but what gets constructed is a bit arbitrary.
  64   try {
  65     std::wstring str03(str_lit01, csz01 + 1);
  66     VERIFY( true );
  67   }
  68   catch(std::length_error& fail) {
  69     VERIFY( true );
  70   }
  71   catch(...) {
  72     VERIFY( false );
  73   }
  74
  75   // NB: As strlen(str_lit01) != csz01, this test is undefined. It
  76   // should not crash, but what gets constructed is a bit arbitrary.
  77   // The "maverick's" of all string objects.
  78   try {
  79     std::wstring str04(str_lit01, npos);
  80     VERIFY( true );
  81   }
  82   catch(std::length_error& fail) {
  83     VERIFY( true );
  84   }
  85   catch(...) {
  86     VERIFY( false );
  87   }
  88
  89   // Build a maxsize - 1 lengthed string consisting of all A's
  90   try {
  91     std::wstring str03(csz01 - 1, 'A');
  92     VERIFY( str03.size() == csz01 - 1 );
  93     VERIFY( str03.size() <= str03.capacity() );
  94   }
  95   // NB: bad_alloc is regrettable but entirely kosher for
  96   // out-of-memory situations.
  97   catch(std::bad_alloc& fail) {
  98     VERIFY( true );
  99   }
 100   catch(...) {
 101     VERIFY( false );
 102   }
 103
 104   // basic_string(const wchar_t* s, const allocator& a = allocator())
 105   std::wstring str04(str_lit01);
 106   VERIFY( str01 == str04 );
 107
 108
 109   // basic_string(size_type n, char c, const allocator& a = allocator())
 110   csz01 = str01.max_size();
 111   try {
 112     std::wstring str03(csz01 + 1, L'z');
 113     VERIFY( false );
 114   }
 115   catch(std::length_error& fail) {
 116     VERIFY( true );
 117   }
 118   catch(...) {
 119     VERIFY( false );
 120   }
 121
 122   try {
 123     std::wstring str04(npos, L'b'); // the "maverick's" of all string objects.
 124     VERIFY( false );
 125   }
 126   catch(std::length_error& fail) {
 127     VERIFY( true );
 128   }
 129   catch(...) {
 130     VERIFY( false );
 131   }
 132
 133   try {
 134     std::wstring str03(csz01 - 1, L'z');
 135     VERIFY( str03.size() != 0 );
 136     VERIFY( str03.size() <= str03.capacity() );
 137   }
 138   // NB: bad_alloc is regrettable but entirely kosher for
 139   // out-of-memory situations.
 140   catch(std::bad_alloc& fail) {
 141     VERIFY( true );
 142   }
 143   catch(...) {
 144     VERIFY( false );
 145   }
 146
 147
 148   // template<typename _InputIter>
 149   //   basic_string(_InputIter begin, _InputIter end, const allocator& a)
 150   std::wstring str06(str01.begin(), str01.end());
 151   VERIFY( str06 == str01 );
 152 }
 153
 154 int main()
 155 {
 156   __gnu_test::set_memory_limits();
 157   test01();
 158   return 0;
 159 }