replace.cc

gcc-you can use this code to learn something about gcc, and inquire further into linux,

// 1999-06-10 bkoz

// Copyright (C) 1994, 1999, 2001, 2002 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.

// 21.3.5.6 basic_string::replace

#include <string>
#include <stdexcept>
#include <testsuite_hooks.h>

bool test01(void)
{
  bool test = true;
  typedef std::string::size_type csize_type;
  typedef std::string::const_reference cref;
  typedef std::string::reference ref;
  csize_type npos = std::string::npos;
  csize_type csz01, csz02;

  const char str_lit01[] = "ventura, california";
  const std::string str01(str_lit01);
  std::string str02("del mar, california");
  std::string str03(" and ");
  std::string str05;

  // string& replace(size_type pos, size_type n, const string& string)
  // string& replace(size_type pos1, size_type n1, const string& string,
  //                 size_type pos2, size_type n2)
  // string& replace(size_type pos, size_type n1, const char* s, size_type n2)
  // string& replace(size_type pos, size_type n1, const char* s)
  // string& replace(size_type pos, size_type n1, size_type n2, char c)
  // string& replace(iterator it1, iterator it2, const string& str)
  // string& replace(iterator it1, iterator it2, const chat* s, size_type n)
  // string& replace(iterator it1, iterator it2, const chat* s)
  // string& replace(iterator it1, iterator it2, size_type n, char c)
  // template<typename InputIter>
  //   string& replace(iterator it1, iterator it2, InputIter j1, InputIter j2)

  // with mods, from tstring.cc, from jason merrill, et. al.
  std::string X = "Hello";
  std::string x = X;

  char ch = x[0];
  VERIFY( ch == 'H' );

  std::string z = x.substr(2, 3);
  VERIFY( z == "llo" );

  x.replace(2, 2, "r");
  VERIFY( x == "Hero" );

  x = X;
  x.replace(0, 1, "j");
  VERIFY( x == "jello" );

  int ar[] = { 'H', 'e', 'l', 'l', 'o' };
  x.replace(std::find(x.begin(), x.end(), 'l'), 
	    std::find(x.rbegin(), x.rend(), 'l').base(), ar, 
	    ar + sizeof(ar) / sizeof(ar[0]));
  VERIFY( x == "jeHelloo" );

#ifdef DEBUG_ASSERT
  assert(test);
#endif
  return test;
}

void
test02()
{
  bool test = true;
  const char* strlit = "../the long pier/Hanalei Bay/Kauai/Hawaii";
  std::string aux = strlit;
  aux.replace(aux.begin()+5, aux.begin()+20,
	      aux.begin()+10, aux.begin()+15);
  VERIFY(aux == "../thg piealei Bay/Kauai/Hawaii");
  
  aux = strlit;
  aux.replace(aux.begin() + 10, aux.begin() + 15,
	      aux.begin() + 5, aux.begin() + 20);
  VERIFY(aux == "../the lone long pier/Hanr/Hanalei Bay/Kauai/Hawaii");
}

// Some more miscellaneous tests
void
test03()
{
  bool test = true;
  const char* title01 = "nine types of ambiguity";
  const char* title02 = "ultra";
  std::string str01 = title01;
  std::string str02 = title02;

  str01.replace(0, 4, str02);
  VERIFY(str01 == "ultra types of ambiguity");

  str01.replace(15, 9, str02, 2, 2);
  VERIFY(str01 == "ultra types of tr");

  str01 = title01;
  str02.replace(0, 0, str01, 0, std::string::npos);
  VERIFY(str02 == "nine types of ambiguityultra");

  str02.replace(11, 2, title02, 5);
  VERIFY(str02 == "nine types ultra ambiguityultra");

  str02.replace(11, 5, title01, 2);
  VERIFY(str02 == "nine types ni ambiguityultra");

  str01.replace(str01.size(), 0, title02);
  VERIFY(str01 == "nine types of ambiguityultra");
  
  str01 = title01;
  str02 = title02;
  str01.replace(str01.begin(), str01.end(), str02);
  VERIFY(str01 == "ultra");

  str01.replace(str01.begin(), str01.begin(), title01, 4);
  VERIFY(str01 == "nineultra");

  str01.replace(str01.end(), str01.end(), title01 + 5, 5);
  VERIFY(str01 == "nineultratypes");
  
  str01.replace(str01.begin(), str01.end(), title02);
  VERIFY(str01 == "ultra");
}

// Some more tests for 
// template<typename InputIter>
//   string& replace(iterator it1, iterator it2, InputIter j1, InputIter j2)
void
test04()
{
  bool test = true;
  std::string str01 = "geogaddi";
  std::string str02;

  typedef std::string::iterator iterator;
  typedef std::string::const_iterator const_iterator;
  
  iterator it1 = str01.begin();
  iterator it2 = str01.end();
  str02.replace(str02.begin(), str02.end(), it1, it2);
  VERIFY(str02 == "geogaddi");

  str02 = "boards";
  const_iterator c_it1 = str01.begin();
  const_iterator c_it2 = str01.end();
  str02.replace(str02.begin(), str02.end(), c_it1, c_it2);
  VERIFY(str02 == "geogaddi");

  str02 = "boards";
  const char* c_ptr1 = str01.c_str();
  const char* c_ptr2 = str01.c_str() + 8;
  str02.replace(str02.begin(), str02.end(), c_ptr1, c_ptr2);
  VERIFY(str02 == "geogaddi");

  str02 = "boards";
  char* ptr1 = &*str01.begin();
  char* ptr2 = &*str01.end();
  str02.replace(str02.begin(), str02.end(), ptr1, ptr2);
  VERIFY(str02 == "geogaddi");
}

// We wrongly used __n1 instead of __foldn1 in the length_error
// check at the beginning of replace(__pos, __n1, __s, __n2)
void
test05()
{
  bool test = true;
  std::string str01 = "londinium";
  std::string str02 = "cydonia";

  str01.replace(0, 20, str02.c_str(), 3);
  VERIFY(str01 == "cyd");
}

int main()
{ 
  test01();
  test02();
  test03();
  test04();
  test05();
  return 0;
}