2
0
mirror of git://gcc.gnu.org/git/gcc.git synced 2024-12-23 20:40:00 +08:00
gcc/libstdc++-v3/testsuite/27_io/stringbuf.cc
Benjamin Kosnik 04d930e6d4 *.cc: Remove spaces, make sure testcases return zero.
2001-05-11   Benjamin Kosnik  <bkoz@redhat.com>

	* testsuite/*/*.cc: Remove spaces, make sure testcases return zero.
	* testsuite/config/default.exp: Update bugs email address.

From-SVN: r41997
2001-05-12 16:53:08 +00:00

444 lines
14 KiB
C++

// 981208 bkoz test functionality of basic_stringbuf for char_type == char
// Copyright (C) 1997-1999, 2000 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.
#include <sstream>
#include <debug_assert.h>
std::string str_01("mykonos. . . or what?");
std::string str_02("paris, or sainte-maxime?");
std::string str_03;
std::stringbuf strb_01(str_01);
std::stringbuf strb_02(str_02, std::ios_base::in);
std::stringbuf strb_03(str_03, std::ios_base::out);
// test the underlying allocator
bool test01() {
bool test = false;
std::allocator<char> alloc_01;
std::allocator<char>::size_type size_01 = alloc_01.max_size();
std::allocator<char>::pointer p_01 = alloc_01.allocate(32);
return true;
}
// test the streambuf/stringbuf locale settings
bool test02() {
std::locale loc_tmp;
loc_tmp = strb_01.getloc();
strb_01.pubimbue(loc_tmp); //This should initialize _M_init to true
strb_01.getloc(); //This should just return _M_locale
return true;
}
// test member functions
bool test03() {
bool test = true;
std::string str_tmp;
//stringbuf::str()
VERIFY( strb_01.str() == str_01 );
VERIFY( strb_02.str() == str_02 );
VERIFY( strb_03.str() == str_03 );
//stringbuf::str(string&)
strb_03.str("none of the above, go to the oberoi in cairo, egypt.");
strb_03.str(str_01);
std::streamsize d1 = strb_01.in_avail();
std::streamsize d2 = strb_03.in_avail();
VERIFY( d1 ); // non-zero
VERIFY( !d2 ); // zero, cuz ios_base::out
VERIFY( d1 != d2 ); //these should be the same
VERIFY( str_01.length() == d1 );
VERIFY( strb_01.str() == strb_03.str() ); //ditto
#ifdef DEBUG_ASSERT
assert(test);
#endif
return test;
}
// test overloaded virtual functions
bool test04() {
bool test = true;
std::string str_tmp;
std::stringbuf strb_tmp;
std::streamsize strmsz_1, strmsz_2;
std::streamoff strmof_1(-1), strmof_2;
typedef std::stringbuf::int_type int_type;
typedef std::stringbuf::traits_type traits_type;
typedef std::stringbuf::pos_type pos_type;
typedef std::stringbuf::off_type off_type;
// GET
// int in_avail()
strmof_1 = strb_01.in_avail();
strmof_2 = strb_02.in_avail();
VERIFY( strmof_1 != strmof_2 );
VERIFY( strmof_1 == str_01.length() );
VERIFY( strmof_2 == str_02.length() );
strmof_1 = strb_03.in_avail();
VERIFY( strmof_1 == 0 ); // zero cuz write-only, or eof()? zero, from showmany
// int_type sbumpc()
// if read_cur not avail, return uflow(), else return *read_cur & increment
int_type c1 = strb_01.sbumpc();
int_type c2 = strb_02.sbumpc();
VERIFY( c1 != c2 );
VERIFY( c1 == str_01[0] );
VERIFY( c2 == str_02[0] ); //should equal first letter at this point
int_type c3 = strb_01.sbumpc();
int_type c4 = strb_02.sbumpc();
VERIFY( c1 != c2 );
VERIFY( c1 != c3 );
VERIFY( c2 != c4 );
int_type c5 = strb_03.sbumpc();
VERIFY( c5 == traits_type::eof() );
// int_type sgetc()
// if read_cur not avail, return uflow(), else return *read_cur
int_type c6 = strb_01.sgetc();
int_type c7 = strb_02.sgetc();
VERIFY( c6 != c3 );
VERIFY( c7 != c4 );
int_type c8 = strb_01.sgetc();
int_type c9 = strb_02.sgetc();
VERIFY( c6 == c8 );
VERIFY( c7 == c9 );
c5 = strb_03.sgetc();
VERIFY( c5 == traits_type::eof() );
// int_type snextc()
// calls sbumpc and if sbumpc != eof, return sgetc
c6 = strb_01.snextc();
c7 = strb_02.snextc();
VERIFY( c6 != c8 );
VERIFY( c7 != c9 );
VERIFY( c6 == str_01[3] );
VERIFY( c7 == str_02[3] ); //should equal fourth letter at this point
c5 = strb_03.snextc();
VERIFY( c5 == traits_type::eof() );
// int showmanyc
// streamsize sgetn(char_type *s, streamsize n)
// streamsize xsgetn(char_type *s, streamsize n)
// assign up to n chars to s from input sequence, indexing in_cur as
// approp and returning the number of chars assigned
strmsz_1 = strb_01.in_avail();
strmsz_2 = strb_02.in_avail();
test = strmsz_1 != strmsz_2;
VERIFY( strmsz_1 != str_01.length() );
VERIFY( strmsz_2 != str_02.length() ); //because now we've moved into string
char carray1[11] = "";
strmsz_1 = strb_01.sgetn(carray1, 10);
char carray2[20] = "";
strmsz_2 = strb_02.sgetn(carray2, 10);
VERIFY( strmsz_1 == strmsz_2 );
VERIFY( strmsz_1 == 10 );
c1 = strb_01.sgetc();
c2 = strb_02.sgetc();
VERIFY( c6 == c1 ); //just by co-incidence both o's
VERIFY( c7 != c2 ); // n != i
VERIFY( c1 == str_01[13] );
VERIFY( c2 == str_02[13] ); //should equal fourteenth letter at this point
strmsz_1 = strb_03.sgetn(carray1, 10);
VERIFY( !strmsz_1 ); //zero
strmsz_1 = strb_02.in_avail();
strmsz_2 = strb_02.sgetn(carray2, strmsz_1 + 5);
VERIFY( strmsz_1 == strmsz_2 ); //write off the end
c4 = strb_02.sgetc(); // should be EOF
VERIFY( c4 == traits_type::eof() );
// PUT
// int_type sputc(char_type c)
// if out_cur not avail, return overflow. Else, stores c at out_cur,
// increments out_cur, and returns c as int_type
strb_03.str(str_01); //reset
std::string::size_type sz1 = strb_03.str().length();
c1 = strb_03.sputc('a');
std::string::size_type sz2 = strb_03.str().length();
VERIFY( sz1 == sz2 ); //cuz inserting at out_cur, which is at beg to start
c2 = strb_03.sputc('b');
VERIFY( c1 != c2 );
VERIFY( strb_03.str() != str_01 );
c3 = strb_02.sputc('a'); // should be EOF because this is read-only
VERIFY( c3 == traits_type::eof() );
// streamsize sputn(const char_typs* s, streamsize n)
// write up to n chars to out_cur from s, returning number assigned
// NB *sputn will happily put '\0' into your stream if you give it a chance*
str_tmp = strb_03.str();
sz1 = str_tmp.length();
strmsz_1 = strb_03.sputn("racadabras", 10);//"abracadabras or what?"
sz2 = strb_03.str().length();
VERIFY( sz1 == sz2 ); //shouldn't have changed length
VERIFY( strmsz_1 == 10 );
VERIFY( str_tmp != strb_03.str() );
strmsz_2 = strb_03.sputn(", i wanna reach out and", 10);
VERIFY( strmsz_1 == strmsz_2 ); // should re-allocate, copy 10 chars.
VERIFY( strmsz_1 == 10 );
VERIFY( strmsz_2 == 10 );
sz2 = strb_03.str().length();
VERIFY( sz1 != sz2 ); // need to change length
VERIFY( str_tmp != strb_03.str() );
str_tmp = strb_02.str();
strmsz_1 = strb_02.sputn("racadabra", 10);
VERIFY( strmsz_1 == 0 );
VERIFY( str_tmp == strb_02.str() );
// PUTBACK
// int_type pbfail(int_type c)
// called when gptr() null, gptr() == eback(), or traits::eq(*gptr, c) false
// "pending sequence" is:
// 1) everything as defined in underflow
// 2) + if (traits::eq_int_type(c, traits::eof()), then input
// sequence is backed up one char before the pending sequence is
// determined.
// 3) + if (not 2) then c is prepended. Left unspecified is
// whether the input sequence is backedup or modified in any way
// returns traits::eof() for failure, unspecified other value for success
// int_type sputbackc(char_type c)
// if in_cur not avail || ! traits::eq(c, gptr() [-1]), return pbfail
// otherwise decrements in_cur and returns *gptr()
strmsz_1 = strb_01.in_avail();
str_tmp = strb_01.str();
c1 = strb_01.sgetc(); //"mykonos. . . 'o'r what?"
c2 = strb_01.sputbackc('z');//"mykonos. . .zor what?"
c3 = strb_01.sgetc();
VERIFY( c1 != c2 );
VERIFY( c3 == c2 );
VERIFY( strb_01.str() == std::string("mykonos. . .zor what?") );
VERIFY( str_tmp.size() == strb_01.str().size() );
//test for _in_cur == _in_beg
strb_01.str(str_tmp);
strmsz_1 = strb_01.in_avail();
c1 = strb_01.sgetc(); //"'m'ykonos. . . or what?"
c2 = strb_01.sputbackc('z');//"mykonos. . . or what?"
c3 = strb_01.sgetc();
VERIFY( c1 != c2 );
VERIFY( c3 != c2 );
VERIFY( c1 == c3 );
VERIFY( c2 == traits_type::eof() );
VERIFY( strb_01.str() == str_tmp );
VERIFY( str_tmp.size() == strb_01.str().size() );
// test for replacing char with identical one
strb_01.str(str_01); //reset
strmsz_1 = strb_01.in_avail();
strb_01.sbumpc();
strb_01.sbumpc();
c1 = strb_01.sgetc(); //"my'k'onos. . . or what?"
c2 = strb_01.sputbackc('y');//"mykonos. . . or what?"
c3 = strb_01.sgetc();
VERIFY( c1 != c2 );
VERIFY( c3 == c2 );
VERIFY( c1 != c3 );
VERIFY( strb_01.str() == str_01 );
VERIFY( str_01.size() == strb_01.str().size() );
//test for ios_base::out
strmsz_2 = strb_03.in_avail();
c4 = strb_03.sputbackc('x');
VERIFY( c4 == traits_type::eof() );
// int_type sungetc()
// if in_cur not avail, return pbackfail(), else decrement and
// return to_int_type(*gptr())
for (int i = 0; i<12; ++i)
strb_01.sbumpc();
strmsz_1 = strb_01.in_avail();
str_tmp = strb_01.str();
c1 = strb_01.sgetc(); //"mykonos. . . 'o'r what?"
c2 = strb_01.sungetc();//"mykonos. . . or what?"
c3 = strb_01.sgetc();
VERIFY( c1 != c2 );
VERIFY( c3 == c2 );
VERIFY( c1 != c3 );
VERIFY( c2 == ' ' );
VERIFY( strb_01.str() == str_01 );
VERIFY( str_01.size() == strb_01.str().size() );
//test for _in_cur == _in_beg
strb_01.str(str_tmp);
strmsz_1 = strb_01.in_avail();
c1 = strb_01.sgetc(); //"'m'ykonos. . . or what?"
c2 = strb_01.sungetc();//"mykonos. . . or what?"
c3 = strb_01.sgetc();
VERIFY( c1 != c2 );
VERIFY( c3 != c2 );
VERIFY( c1 == c3 );
VERIFY( c2 == traits_type::eof() );
VERIFY( strb_01.str() == str_01 );
VERIFY( str_01.size() == strb_01.str().size() );
// test for replacing char with identical one
strb_01.str(str_01); //reset
strmsz_1 = strb_01.in_avail();
strb_01.sbumpc();
strb_01.sbumpc();
c1 = strb_01.sgetc(); //"my'k'onos. . . or what?"
c2 = strb_01.sungetc();//"mykonos. . . or what?"
c3 = strb_01.sgetc();
VERIFY( c1 != c2 );
VERIFY( c3 == c2 );
VERIFY( c1 != c3 );
VERIFY( strb_01.str() == str_01 );
VERIFY( str_01.size() == strb_01.str().size() );
//test for ios_base::out
strmsz_2 = strb_03.in_avail();
c4 = strb_03.sungetc();
VERIFY( c4 == traits_type::eof() );
// BUFFER MANAGEMENT & POSITIONING
// sync
// pubsync
strb_01.pubsync();
strb_02.pubsync();
strb_03.pubsync();
// setbuf
// pubsetbuf(char_type* s, streamsize n)
str_tmp = std::string("naaaah, go to cebu");
strb_01.pubsetbuf(const_cast<char*> (str_tmp.c_str()), str_tmp.size());
VERIFY( strb_01.str() == str_tmp );
strb_01.pubsetbuf(0,0);
VERIFY( strb_01.str() == str_tmp );
// seekoff
// pubseekoff(off_type off, ios_base::seekdir way, ios_base::openmode which)
// alters the stream position to off
pos_type pt_1(off_type(-1));
pos_type pt_2(off_type(0));
off_type off_1 = 0;
off_type off_2 = 0;
strb_01.str(str_01); //in|out ("mykonos. . . or what?");
strb_02.str(str_02); //in ("paris, or sainte-maxime?");
strb_03.str(str_03); //out ("")
//IN|OUT
//beg
pt_1 = strb_01.pubseekoff(2, std::ios_base::beg);
off_1 = pt_1;
VERIFY( off_1 >= 0 );
c1 = strb_01.snextc(); //current in pointer +1
VERIFY( c1 == 'o' );
c2 = strb_01.sputc('x'); //test current out pointer
str_tmp = std::string("myxonos. . . or what?");
VERIFY( strb_01.str() == str_tmp );
//cur
pt_1 = strb_01.pubseekoff(2, std::ios_base::cur);
off_1 = pt_1;
VERIFY( off_1 == -1 ); // can't seekoff for in and out + cur in sstreams
pt_1 = strb_01.pubseekoff(2, std::ios_base::cur, std::ios_base::in);
off_1 = pt_1;
pt_2 = strb_01.pubseekoff(2, std::ios_base::cur, std::ios_base::in);
off_2 = pt_2;
VERIFY( off_2 == off_1 + 2 );
c1 = strb_01.snextc(); //current in pointer + 1
VERIFY( c1 == ' ' );
c2 = strb_01.sputc('x'); //test current out pointer
str_tmp = std::string("myxxnos. . . or what?");
VERIFY( strb_01.str() == str_tmp );
//end
pt_2 = strb_01.pubseekoff(2, std::ios_base::end);
off_1 = pt_2;
VERIFY( off_1 == -1 ); // not a valid position
VERIFY( strb_01.str() == str_tmp );
// end part two (from the filebuf tests)
strb_01.pubseekoff(0, std::ios_base::end);
strmsz_1 = strb_01.in_avail(); // 0 cuz at the end
c1 = strb_01.sgetc();
c2 = strb_01.sungetc();
strmsz_2 = strb_01.in_avail(); // 1
c3 = strb_01.sgetc();
VERIFY( c1 != c2 );
VERIFY( strmsz_2 != strmsz_1 );
VERIFY( strmsz_2 == 1 );
// end part three
strmsz_1 = strb_01.str().size();
strmsz_2 = strb_01.sputn(" ravi shankar meets carlos santana in LoHa", 90);
strb_01.pubseekoff(0, std::ios_base::end);
strb_01.sputc('<');
str_tmp = strb_01.str();
VERIFY( str_tmp.size() == strmsz_1 + strmsz_2 + 1 );
// IN
// OUT
// seekpos
// pubseekpos(pos_type sp, ios_base::openmode)
// alters the stream position to sp
strb_01.str(str_01); //in|out ("mykonos. . . or what?");
strb_02.str(str_02); //in ("paris, or sainte-maxime?");
strb_03.str(str_03); //out ("")
//IN|OUT
//beg
pt_1 = strb_01.pubseekoff(2, std::ios_base::beg);
off_1 = pt_1;
VERIFY( off_1 >= 0 );
pt_1 = strb_01.pubseekoff(0, std::ios_base::cur, std::ios_base::out);
off_1 = pt_1;
c1 = strb_01.snextc(); //current in pointer +1
VERIFY( c1 == 'o' );
c2 = strb_01.sputc('x'); //test current out pointer
str_tmp = std::string("myxonos. . . or what?");
VERIFY( strb_01.str() == str_tmp );
strb_01.pubsync(); //resets pointers
pt_2 = strb_01.pubseekpos(pt_1, std::ios_base::in|std::ios_base::out);
off_2 = pt_2;
VERIFY( off_1 == off_2 );
c3 = strb_01.snextc(); //current in pointer +1
VERIFY( c1 == c3 );
c2 = strb_01.sputc('x'); //test current out pointer
str_tmp = std::string("myxonos. . . or what?");
VERIFY( strb_01.str() == str_tmp );
// VIRTUALS (indirectly tested)
// underflow
// if read position avail, returns *gptr()
// pbackfail(int_type c)
// put c back into input sequence
// overflow
// appends c to output seq
#ifdef DEBUG_ASSERT
assert(test);
#endif
return test;
}
int main() {
test01();
test02();
test03();
test04();
return 0;
}
// more candy!!!