+++ /dev/null
-// 2001-05-21 Benjamin Kosnik <bkoz@redhat.com>
-
-// Copyright (C) 2001, 2002, 2003 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.
-
-// 27.8.1.4 Overridden virtual functions
-
-#include <fstream>
-#include <locale>
-#include <testsuite_hooks.h>
-
-// @require@ %-*.tst %-*.txt
-// @diff@ %-*.tst %*.txt
-
-void test01()
-{
- using namespace std;
-
- bool test = true;
- char buf[512];
- const char* strlit = "how to tell a story and other essays: mark twain";
- const size_t strlitsize = std::strlen(strlit);
- filebuf fbuf01;
-
- fbuf01.pubsetbuf(buf, 512);
- fbuf01.sputn(strlit, strlitsize);
- VERIFY( std::strncmp(strlit, buf, strlitsize) != 0 );
-}
-
-void test02()
-{
- using namespace std;
-
- bool test = true;
- char buf[512];
- const char* strlit = "how to tell a story and other essays: mark twain";
- const size_t strlitsize = std::strlen(strlit);
- filebuf fbuf01;
- fbuf01.open("tmp", ios_base::out);
-
- fbuf01.pubsetbuf(buf, strlitsize);
- fbuf01.sputn(strlit, strlitsize);
- VERIFY( std::strncmp(strlit, buf, strlitsize) == 0 );
-}
-
-
-// NB: This test assumes that _M_buf_size == 40, and not the usual
-// buffer_size length of BUFSIZ (8192), so that overflow/underflow can be
-// simulated a bit more readily.
-// NRB (Nota Really Bene): setting it to 40 breaks the test, as intended.
-const int buffer_size = 8192;
-//const int buffer_size = 40;
-
-const char carray_01[] = "santa cruz or sandiego?";
-const char carray_02[] = "memphis, new orleans, and savanah";
-const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it
-const char name_02[] = "filebuf_virtuals-2.txt"; // empty file, need to create
-const char name_03[] = "filebuf_virtuals-3.txt"; // empty file, need to create
-
-
-class derived_filebuf: public std::filebuf
-{
- public:
- void
- set_size(int_type __size) { _M_buf_size_opt = __size; }
-};
-
-derived_filebuf fb_01; // in
-derived_filebuf fb_02; // out
-derived_filebuf fb_03; // in | out
-
-
-// Initialize filebufs to be the same size regardless of platform.
-void test03()
-{
- fb_01.set_size(buffer_size);
- fb_02.set_size(buffer_size);
- fb_03.set_size(buffer_size);
-}
-
-
-// Test the filebuf/stringbuf locale settings.
-void test04()
-{
- std::locale loc_tmp;
- loc_tmp = fb_01.getloc();
- fb_01.pubimbue(loc_tmp); //This should initialize _M_init to true
- fb_01.getloc(); //This should just return _M_locale
-}
-
-// Test overloaded virtual functions.
-void test05()
-{
- typedef std::filebuf::int_type int_type;
- typedef std::filebuf::traits_type traits_type;
- typedef std::filebuf::pos_type pos_type;
- typedef std::filebuf::off_type off_type;
- typedef size_t size_type;
-
- bool test = true;
- std::filebuf f_tmp;
- std::streamsize strmsz_1, strmsz_2;
- std::streamoff strmof_1, strmof_2;
- int i = 0, j = 0, k = 0;
-
- // GET
- // int showmanyc()
- // returns an estimate of the numbers of chars in the seq, or -1.
- // if __retval > 0, then calls to underflow won't return
- // traits_type::eof() till at least __retval chars.
- // if __retval == -1, then calls to underflow or uflow will fail.
- // NB overriding def if it can determine more chars can be read from
- // the input sequence.
-
- // int in_avail()
- // if a read position is available, return _M_in_end - _M_in_cur.
- // else return showmanyc.
- strmof_1 = fb_01.in_avail();
- strmof_2 = fb_02.in_avail();
- VERIFY( strmof_1 == -1 );
- VERIFY( strmof_1 == strmof_2 ); //fail because not open
- strmof_1 = fb_03.in_avail();
- VERIFY( strmof_1 == strmof_2 );
- fb_01.open(name_01, std::ios_base::in);
- fb_02.open(name_02, std::ios_base::out | std::ios_base::trunc);
- fb_03.open(name_03, std::ios_base::out | std::ios_base::in | std::ios_base::trunc);
- strmof_1 = fb_01.in_avail();
- strmof_2 = fb_02.in_avail();
- VERIFY( strmof_1 != strmof_2 );
- VERIFY( strmof_1 >= 0 );
- VERIFY( strmof_2 == -1 ); // empty file
- strmof_1 = fb_03.in_avail();
- VERIFY( strmof_1 == 0 ); // empty file
-
- // int_type sbumpc()
- // if read_cur not avail returns uflow(), else return *read_cur & increment
- int_type c1 = fb_01.sbumpc();
- int_type c2 = fb_02.sbumpc();
- VERIFY( c1 != c2 );
- VERIFY( c1 == '/' );
- VERIFY( c2 == -1 );
- int_type c3 = fb_01.sbumpc();
- int_type c4 = fb_02.sbumpc();
- VERIFY( c3 != c4 );
- VERIFY( c1 == c3 ); // fluke, both happen to be '/'
- VERIFY( c2 == c4 );
- int_type c5 = fb_03.sbumpc();
- VERIFY( c5 == traits_type::eof() );
- // XXX should do some kind of test to make sure that internal
- // buffers point ot the same thing, to check consistancy.
-
- // int_type sgetc()
- // if read_cur not avail, return uflow(), else return *read_cur
- int_type c6 = fb_01.sgetc();
- int_type c7 = fb_02.sgetc();
- VERIFY( c6 != c3 );
- VERIFY( c7 == c4 ); // both -1
- int_type c8 = fb_01.sgetc();
- int_type c9 = fb_02.sgetc();
- VERIFY( c6 == c8 );
- VERIFY( c7 == c9 );
- c5 = fb_03.sgetc();
- VERIFY( c5 == traits_type::eof() );
-
- // int_type snextc()
- // calls sbumpc and if sbumpc != eof, return sgetc
- c6 = fb_01.snextc();
- c7 = fb_02.snextc();
- VERIFY( c6 != c8 );
- VERIFY( c7 == c9 ); // -1
- VERIFY( c6 == '9' );
- c6 = fb_01.snextc();
- c7 = fb_02.snextc();
- VERIFY( c6 != c8 );
- VERIFY( c7 == c9 ); // -1
- VERIFY( c6 == '9' );
- c5 = fb_03.snextc();
- VERIFY( c5 == traits_type::eof() );
-
- // 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 = fb_01.in_avail();
- strmsz_2 = fb_02.in_avail();
- test = strmsz_1 != strmsz_2;
- char carray1[13] = "";
- strmsz_1 = fb_01.sgetn(carray1, 10);
- char carray2[buffer_size] = "";
- strmsz_2 = fb_02.sgetn(carray2, 10);
- VERIFY( strmsz_1 != strmsz_2 );
- VERIFY( strmsz_1 == 10 );
- VERIFY( strmsz_2 == 0 );
- c1 = fb_01.sgetc();
- c2 = fb_02.sgetc();
- VERIFY( c1 == '\n' );
- VERIFY( c7 == c2 ); // n != i
- strmsz_1 = fb_03.sgetn(carray1, 10);
- VERIFY( !strmsz_1 ); //zero
- strmsz_1 = fb_01.in_avail();
- strmsz_2 = fb_01.sgetn(carray2, strmsz_1 + 5);
- VERIFY( strmsz_1 == strmsz_2 - 5 );
- c4 = fb_01.sgetc(); // buffer should have underflowed from above.
- VERIFY( c4 == 'i' );
- strmsz_1 = fb_01.in_avail();
- VERIFY( strmsz_1 > 0 );
- strmsz_2 = fb_01.sgetn(carray2, strmsz_1 + 5);
- VERIFY( strmsz_1 == strmsz_2 ); //at the end of the actual file
- strmsz_1 = fb_02.in_avail();
- strmsz_2 = fb_02.sgetn(carray2, strmsz_1 + 5);
- VERIFY( strmsz_1 == -1 );
- VERIFY( strmsz_2 == 0 );
- c4 = fb_02.sgetc(); // should be EOF
- VERIFY( c4 == traits_type::eof() );
-
- // PUT
- // int_type sputc(char_type c)
- // if out_cur not avail, return overflow(traits_type::to_int_type(c))
- // else, stores c at out_cur,
- // increments out_cur, and returns c as int_type
- // strmsz_1 = fb_03.in_avail(); // XXX valid for in|out??
- c1 = fb_02.sputc('a');
- c2 = fb_03.sputc('b');
- VERIFY( c1 != c2 );
- c1 = fb_02.sputc('c');
- c2 = fb_03.sputc('d');
- VERIFY( c1 != c2 );
- // strmsz_2 = fb_03.in_avail();
- // VERIFY( strmsz_1 != strmsz_2 );
- for (int i = 50; i <= 90; ++i)
- c2 = fb_02.sputc(char(i));
- // 27filebuf-2.txt == ac23456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWX
- // fb_02._M_out_cur = '2'
- strmsz_1 = fb_03.in_avail();
- for (int i = 50; i <= 90; ++i)
- c2 = fb_03.sputc(char(i));
- strmsz_2 = fb_03.in_avail();
- // VERIFY( strmsz_1 != strmsz_2 );
- // VERIFY( strmsz_1 > 0 );
- // VERIFY( strmsz_2 > 0 );
- // 27filebuf-2.txt == bd23456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWX
- // fb_02._M_out_cur = '2'
- c3 = fb_01.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*
- strmsz_1 = fb_03.sputn("racadabras", 10);//"abracadabras or what?"
- VERIFY( strmsz_1 == 10 );
- strmsz_2 = fb_03.sputn(", i wanna reach out and", 10);
- VERIFY( strmsz_2 == 10 );
- VERIFY( strmsz_1 == strmsz_2 );
- // fb_03._M_out_beg = "YZracadabras, i wanna FGHIJKLMNOPQRSTUVW"
- // fb_03._M_out_cur = "FGHIJKLMNOPQRSTUVW"
- strmsz_1 = fb_02.sputn("racadabras", 10);
- VERIFY( strmsz_1 == 10 );
- // fb_02._M_out_beg = "YZracadabras<=>?@ABCDEFGHIJKLMNOPQRSTUVW"
- // fb_02._M_out_cur = "<=>?@ABCDEFGHIJKLMNOPQRSTUVW"
- strmsz_1 = fb_01.sputn("racadabra", 10);
- VERIFY( strmsz_1 == 0 );
-
- // 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()
- c1 = fb_03.sgetc(); // -1
- c2 = fb_03.sputbackc('z');
- strmsz_2 = fb_03.in_avail();
- c3 = fb_03.sgetc();
- VERIFY( c3 == c2 );
- VERIFY( c1 != c3 );
- VERIFY( 1 == strmsz_2 );
- //test for _in_cur == _in_beg
- // fb_03._M_out_beg = "bd23456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZracada" etc
- fb_03.pubseekoff(10, std::ios_base::beg,
- std::ios_base::in | std::ios_base::out);
- fb_03.sputc('m');
- strmsz_1 = fb_03.in_avail();
- c1 = fb_03.sgetc();
- fb_03.snextc();
- c2 = fb_03.sputbackc('z');
- strmsz_2 = fb_03.in_avail();
- c3 = fb_03.sgetc();
- VERIFY( c1 != c2 );
- VERIFY( c3 == c2 );
- VERIFY( c1 != c3 );
- VERIFY( c2 == 'z' );
- // VERIFY( strmsz_1 == strmsz_2 );
- // test for replacing char with identical one
- fb_03.snextc();
- fb_03.sputc('u');
- fb_03.sputc('v');
- fb_03.sputc('a');
- strmsz_1 = fb_03.in_avail();
- c2 = fb_03.sputbackc('a');
- strmsz_2 = fb_03.in_avail();
- c3 = fb_03.sgetc();
- VERIFY( c3 == c2 );
- VERIFY( strmsz_1 + 1 == strmsz_2 );
- //test for ios_base::out
- c1 = fb_02.sgetc(); // undefined
- c2 = fb_02.sputbackc('a');
- VERIFY( c1 == c2 );
- VERIFY( c1 == -1 );
-
- // int_type sungetc()
- // if in_cur not avail, return pbackfail(), else decrement and
- // return to_int_type(*gptr())
- // fb_03._M_out_beg = "uvaacadabras, i wannaZ[\\]^_`abcdefghijkl"
- // fb_03._M_out_cur = "aacadabras, i wannaZ[\\]^_`abcdefghijkl"
- strmsz_1 = fb_03.in_avail();
- c2 = fb_03.sungetc(); // delete the 'a'
- strmsz_2 = fb_03.in_avail();
- VERIFY( c2 == 'v' ); // VERIFY( c2 != traits_type::eof() );
- VERIFY( strmsz_1 + 1 == strmsz_2 );
- //test for _in_cur == _in_beg
- for (int i = 50; i < 32 + 29; ++i)
- fb_02.sputc(char(i));
- fb_02.pubseekoff(0, std::ios_base::beg, std::ios_base::out);
- c1 = fb_02.sgetc();
- strmsz_1 = fb_02.in_avail();
- c2 = fb_02.sungetc();
- c3 = fb_02.sgetc();
- strmsz_2 = fb_02.in_avail();
- VERIFY( c1 == c2 );
- VERIFY( c2 == c3 );
- VERIFY( c1 == traits_type::eof() );
- VERIFY( strmsz_1 == strmsz_2 );
- //test for _in_cur == _in_end
- fb_03.pubseekoff(0, std::ios_base::end);
- strmsz_1 = fb_03.in_avail(); // -1 cuz at the end
- c1 = fb_03.sgetc();
- c2 = fb_03.sungetc();
- strmsz_2 = fb_03.in_avail(); // 1
- c3 = fb_03.sgetc();
- VERIFY( c1 != c2 );
- // VERIFY( c2 == c3 || c2 == traits_type::not_eof(int(c3)) );
- VERIFY( strmsz_2 != strmsz_1 );
- VERIFY( strmsz_2 == 1 );
- //test for ios_base::out
-
- // BUFFER MANAGEMENT & POSITIONING
- // int sync()
- // if a put area exists, overflow.
- // if a get area exists, do something undefined. (like, nothing)
- strmsz_1 = fb_01.in_avail();
- fb_01.pubsync();
- strmsz_2 = fb_01.in_avail();
- VERIFY( strmsz_2 == strmsz_1 );
- strmsz_1 = fb_02.in_avail();
- fb_02.pubsync();
- // 27filebuf-2.txt == 53 bytes after this.
- strmsz_2 = fb_02.in_avail();
- VERIFY( strmsz_2 == -1 );
- VERIFY( strmsz_2 == strmsz_1 );
- strmsz_1 = fb_03.in_avail();
- fb_03.pubsync();
- // 27filebuf-3.txt
- // bd23456789mzuva?@ABCDEFGHIJKLMNOPQRSTUVWXYZracadabras, i wannaz
- // 63 bytes.
- strmsz_2 = fb_03.in_avail();
- VERIFY( strmsz_1 == 1 );
- // VERIFY( strmsz_2 == 1 );
-
- // setbuf
- // pubsetbuf(char_type* s, streamsize n)
- fb_01.pubsetbuf(0,0);
- fb_02.pubsetbuf(0,0);
- fb_03.pubsetbuf(0,0);
- // Need to test unbuffered output, which means calling this on some
- // things that have just been opened.
-
-
- // 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;
- //IN|OUT
- // 27filebuf-3.txt = bd23456789:;<=>?...
- //beg
- strmsz_1 = fb_03.in_avail();
- pt_1 = fb_03.pubseekoff(2, std::ios_base::beg);
- strmsz_2 = fb_03.in_avail();
- off_1 = pt_1;
- VERIFY( off_1 > 0 );
- c1 = fb_03.snextc(); //current in pointer +1
- VERIFY( c1 == '3' );
- c2 = fb_03.sputc('\n'); //current in pointer +1
- c3 = fb_03.sgetc();
- VERIFY( c2 != c3 );
- VERIFY( c3 == '4' );
- fb_03.pubsync();
- c1 = fb_03.sgetc();
- VERIFY( c1 == c3 );
- //cur
- // 27filebuf-3.txt = bd2\n456789:;<=>?...
- pt_2 = fb_03.pubseekoff(2, std::ios_base::cur);
- off_2 = pt_2;
- VERIFY( (off_2 == (off_1 + 2 + 1 + 1)) );
- c1 = fb_03.snextc(); //current in pointer +1
- VERIFY( c1 == '7' );
- c2 = fb_03.sputc('x'); //test current out pointer
- c3 = fb_03.sputc('\n');
- c1 = fb_03.sgetc();
- fb_03.pubsync();
- c3 = fb_03.sgetc();
- VERIFY( c1 == c3 );
- //end
- // 27filebuf-3.txt = "bd2\n456x\n9"
- pt_2 = fb_03.pubseekoff(0, std::ios_base::end,
- std::ios_base::in|std::ios_base::out);
- off_1 = pt_2;
- VERIFY( off_1 > off_2 ); //weak, but don't know exactly where it ends
- c3 = fb_03.sputc('\n');
- strmsz_1 = fb_03.sputn("because because because. . .", 28);
- VERIFY( strmsz_1 == 28 );
- c1 = fb_03.sungetc();
- // Defect? retval of sungetc is not necessarily the character ungotten.
- // So re-get it.
- c1 = fb_03.sgetc();
- fb_03.pubsync();
- c3 = fb_03.sgetc();
- VERIFY( c1 == c3 );
- // IN
- // OUT
-
-
- // seekpos
- // pubseekpos(pos_type sp, ios_base::openmode)
- // alters the stream position to sp
- //IN|OUT
- //beg
- pt_1 = fb_03.pubseekoff(78, std::ios_base::beg);
- off_1 = pt_1;
- VERIFY( off_1 > 0 );
- c1 = fb_03.snextc(); //current in pointer +1
- VERIFY( c1 == ' ' );
- c2 = fb_03.sputc('\n'); //test current out pointer
- c3 = fb_03.sgetc();
- fb_03.pubsync(); //resets pointers
- pt_2 = fb_03.pubseekpos(pt_1);
- off_2 = pt_2;
- VERIFY( off_1 == off_2 );
- c3 = fb_03.snextc(); //current in pointer +1
- VERIFY( c2 == c3 );
- pt_1 = fb_03.pubseekoff(0, std::ios_base::end);
- off_1 = pt_1;
- VERIFY( off_1 > off_2 );
- fb_03.sputn("\nof the wonderful things he does!!\nok", 37);
- fb_03.pubsync();
-
- // IN
- // OUT
-
- // 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
-
- // NB Have to close these suckers. . .
- // filebuf_type* close()
- fb_01.close();
- fb_02.close();
- fb_03.close();
- VERIFY( !fb_01.is_open() );
- VERIFY( !fb_02.is_open() );
- VERIFY( !fb_03.is_open() );
-}
-
-void test06()
-{
- using namespace std;
- typedef istream::int_type int_type;
-
- bool test = true;
- ifstream ifs(name_02);
- char buffer[] = "xxxxxxxxxx";
- int_type len1 = ifs.rdbuf()->sgetn(buffer, sizeof(buffer));
- VERIFY( len1 == sizeof(buffer) );
- VERIFY( buffer[0] == 'a' );
-}
-
-// libstdc++/9322
-void test07()
-{
- using std::locale;
- bool test = true;
-
- locale loc;
- std::filebuf ob;
- VERIFY( ob.getloc() == loc );
-
- locale::global(locale("en_US"));
- VERIFY( ob.getloc() == loc );
-
- locale loc_de ("de_DE");
- locale ret = ob.pubimbue(loc_de);
- VERIFY( ob.getloc() == loc_de );
- VERIFY( ret == loc );
-
- locale::global(loc);
- VERIFY( ob.getloc() == loc_de );
-}
-
-class MyTraits : public std::char_traits<char>
-{
-public:
- static bool eq(char c1, char c2)
- {
- VERIFY( c1 != 'X' );
- VERIFY( c2 != 'X' );
- return std::char_traits<char>::eq(c1, c2);
- }
-};
-
-class MyBuf : public std::basic_streambuf<char, MyTraits>
-{
- char buffer[8];
-
-public:
- MyBuf()
- {
- std::memset(buffer, 'X', sizeof(buffer));
- std::memset(buffer + 2, 'f', 4);
- setg(buffer + 2, buffer + 2, buffer + 6);
- }
-};
-
-// libstdc++/9538
-void test08()
-{
- bool test = true;
-
- MyBuf mb;
- mb.sputbackc('a');
-}
-
-class Cvt_to_upper : public std::codecvt<char, char, mbstate_t>
-{
- bool do_always_noconv() const throw()
- {
- return false;
- }
-};
-
-// libstdc++/9169
-void test09()
-{
- using namespace std;
- bool test = true;
-
- locale c_loc;
- locale loc(c_loc, new Cvt_to_upper);
-
- string str("abcdefghijklmnopqrstuvwxyz");
- string tmp;
-
- {
- ofstream out;
- out.imbue(loc);
- out.open("filebuf_virtuals-4.txt");
- copy(str.begin(), str.end(),
- ostreambuf_iterator<char>(out));
- }
-
- {
- ifstream in;
- in.open("filebuf_virtuals-4.txt");
- copy(istreambuf_iterator<char>(in),
- istreambuf_iterator<char>(),
- back_inserter(tmp));
- }
-
- VERIFY( tmp.size() == str.size() );
- VERIFY( tmp == str );
-}
-
-main()
-{
- test01();
- test02();
-
- test03();
- test04();
- test05();
- test06();
-
- test07();
- test08();
- test09();
- return 0;
-}
projects / msp430-gcc.git / blobdiff