161 lines
4.1 KiB
C++
161 lines
4.1 KiB
C++
// 981015 bkoz
|
|
// i,o,stringstream usage
|
|
|
|
// Copyright (C) 1997-1999 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.
|
|
|
|
// As a special exception, you may use this file as part of a free software
|
|
// library without restriction. Specifically, if other files instantiate
|
|
// templates or use macros or inline functions from this file, or you compile
|
|
// this file and link it with other files to produce an executable, this
|
|
// file does not by itself cause the resulting executable to be covered by
|
|
// the GNU General Public License. This exception does not however
|
|
// invalidate any other reasons why the executable file might be covered by
|
|
// the GNU General Public License.
|
|
|
|
#include <vector>
|
|
#include <string>
|
|
#include <sstream>
|
|
#include <debug_assert.h>
|
|
|
|
// 01: sanity checks for strings, stringbufs
|
|
std::string
|
|
test01()
|
|
{
|
|
bool test = false;
|
|
|
|
// Empty string sanity check.
|
|
std::string str01;
|
|
std::string::iterator __i_start = str01.begin();
|
|
std::string::iterator __i_end = str01.end();
|
|
std::string::size_type len = str01.size();
|
|
test = __i_start == __i_end;
|
|
VERIFY( len == 0 );
|
|
|
|
// Full string sanity check.
|
|
std::string str02("these golden days, i spend waiting for you:\n"
|
|
"Betty Carter on Verve with I'm Yours and You're Mine.");
|
|
__i_start = str02.begin();
|
|
__i_end = str02.end();
|
|
len = str02.size();
|
|
VERIFY( __i_start != __i_end );
|
|
VERIFY( len != 0 );
|
|
|
|
// Test an empty ostring stream for sanity.
|
|
std::ostringstream ostrstream0;
|
|
std::string str03 = ostrstream0.str();
|
|
__i_start = str03.begin();
|
|
__i_end = str03.end();
|
|
len = str03.size();
|
|
VERIFY( __i_start == __i_end );
|
|
VERIFY( len == 0 );
|
|
VERIFY( str01 == str03 );
|
|
|
|
return str02;
|
|
}
|
|
|
|
|
|
int
|
|
test02()
|
|
{
|
|
bool test = true;
|
|
|
|
//
|
|
// 1: Automatic formatting of a compound string
|
|
//
|
|
int i = 1024;
|
|
int *pi = &i;
|
|
double d = 3.14159;
|
|
double *pd = &d;
|
|
std::string blank;
|
|
std::ostringstream ostrst01;
|
|
std::ostringstream ostrst02(blank);
|
|
|
|
// No buffer,so should be created.
|
|
ostrst01 << "i: " << i << " i's address: " << pi << "\n"
|
|
<< "d: " << d << " d's address: " << pd << std::endl;
|
|
// Buffer, so existing buffer should be overwritten.
|
|
ostrst02 << "i: " << i << " i's address: " << pi << "\n"
|
|
<< "d: " << d << " d's address: " << pd << std::endl;
|
|
|
|
std::string msg01 = ostrst01.str();
|
|
std::string msg02 = ostrst02.str();
|
|
VERIFY( msg01 == msg02 );
|
|
VERIFY( msg02 != blank );
|
|
|
|
//
|
|
// 2: istringstream
|
|
//
|
|
// extracts the stored ascii values, placing them in turn in the four vars
|
|
#if 0
|
|
int i2 = 0;
|
|
int *pi2 = &i2;
|
|
double d2 = 0.0;
|
|
double *pd2 = &d2;
|
|
std::istringstream istrst01(ostrst02.str());
|
|
|
|
istrst01 >> i2 >> pi2 >> d2 >> pd2;
|
|
//istrst01 >> i2;
|
|
//istrst01 >> pi2;
|
|
VERIFY( i2 == i );
|
|
VERIFY( d2 == d );
|
|
VERIFY( pd2 == pd );
|
|
VERIFY( pi2 == pi );
|
|
#endif
|
|
|
|
// stringstream
|
|
std::string str1("");
|
|
std::string str3("this is a somewhat string");
|
|
std::stringstream ss1(str1, std::ios_base::in|std::ios_base::out);
|
|
std::stringstream ss2(str3, std::ios_base::in|std::ios_base::out);
|
|
|
|
return 0;
|
|
}
|
|
|
|
// user-reported error
|
|
class derived_oss: public std::ostringstream
|
|
{
|
|
public:
|
|
derived_oss() : std::ostringstream() {}
|
|
};
|
|
|
|
int
|
|
test03()
|
|
{
|
|
bool test = true;
|
|
derived_oss yy;
|
|
yy << "buena vista social club\n";
|
|
VERIFY( yy.str() == std::string("buena vista social club\n") );
|
|
|
|
#ifdef DEBUG_ASSERT
|
|
assert(test);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
main()
|
|
{
|
|
test01();
|
|
test02();
|
|
test03();
|
|
|
|
return 0;
|
|
}
|