| // 2001-05-24 Benjamin Kosnik <bkoz@redhat.com> |
| |
| // Copyright (C) 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. |
| |
| // 27.7.6 member functions (stringstream_members) |
| |
| #include <sstream> |
| #include <testsuite_hooks.h> |
| |
| void test01() |
| { |
| bool test = true; |
| std::stringstream is01; |
| const std::string str00; |
| const std::string str01 = "123"; |
| std::string str02; |
| const int i01 = 123; |
| int a,b; |
| |
| std::ios_base::iostate state1, state2, statefail, stateeof; |
| statefail = std::ios_base::failbit; |
| stateeof = std::ios_base::eofbit; |
| |
| // string str() const |
| str02 = is01.str(); |
| VERIFY( str00 == str02 ); |
| |
| // void str(const basic_string&) |
| is01.str(str01); |
| str02 = is01.str(); |
| VERIFY( str01 == str02 ); |
| state1 = is01.rdstate(); |
| is01 >> a; |
| state2 = is01.rdstate(); |
| VERIFY( a = i01 ); |
| // 22.2.2.1.2 num_get virtual functions |
| // p 13 |
| // in any case, if stage 2 processing was terminated by the test for |
| // in == end then err != ios_base::eofbit is performed. |
| VERIFY( state1 != state2 ); |
| VERIFY( state2 == stateeof ); |
| |
| is01.str(str01); |
| is01 >> b; |
| VERIFY( b != a ); |
| // as is01.good() is false, istream::sentry blocks extraction. |
| |
| is01.clear(); |
| state1 = is01.rdstate(); |
| is01 >> b; |
| state2 = is01.rdstate(); |
| VERIFY( b == a ); |
| VERIFY( state1 != state2 ); |
| VERIFY( state2 == stateeof ); |
| |
| #ifdef DEBUG_ASSERT |
| assert(test); |
| #endif |
| } |
| |
| void |
| redirect_buffer(std::ios& stream, std::streambuf* new_buf) |
| { stream.rdbuf(new_buf); } |
| |
| std::streambuf* |
| active_buffer(std::ios& stream) |
| { return stream.rdbuf(); } |
| |
| // libstdc++/2832 |
| void test02() |
| { |
| bool test = true; |
| const char* strlit01 = "fuck war"; |
| const char* strlit02 = "two less cars abstract riot crew, critical mass/SF"; |
| const std::string str00; |
| const std::string str01(strlit01); |
| std::string str02; |
| std::stringbuf sbuf(str01); |
| std::streambuf* pbasebuf0 = &sbuf; |
| |
| std::stringstream sstrm1; |
| VERIFY( sstrm1.str() == str00 ); |
| // derived rdbuf() always returns original streambuf, even though |
| // it's no longer associated with the stream. |
| std::stringbuf* const buf1 = sstrm1.rdbuf(); |
| // base rdbuf() returns the currently associated streambuf |
| std::streambuf* pbasebuf1 = active_buffer(sstrm1); |
| redirect_buffer(sstrm1, &sbuf); |
| std::stringbuf* const buf2 = sstrm1.rdbuf(); |
| std::streambuf* pbasebuf2 = active_buffer(sstrm1); |
| VERIFY( buf1 == buf2 ); |
| VERIFY( pbasebuf1 != pbasebuf2 ); |
| VERIFY( pbasebuf2 == pbasebuf0 ); |
| |
| // derived rdbuf() returns the original buf, so str() doesn't change. |
| VERIFY( sstrm1.str() != str01 ); |
| VERIFY( sstrm1.str() == str00 ); |
| // however, casting the active streambuf to a stringbuf shows what's up: |
| std::stringbuf* psbuf = dynamic_cast<std::stringbuf*>(pbasebuf2); |
| str02 = psbuf->str(); |
| VERIFY( str02 == str01 ); |
| |
| // How confusing and non-intuitive is this? |
| // These semantics are a joke, a serious defect, and incredibly lame. |
| } |
| |
| void |
| test03() |
| { |
| 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; |
| void* pi2 = &i2; |
| double d2 = 0.0; |
| // double* pd2 = &d2; |
| void* 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); |
| } |
| |
| // libstdc++/8466 |
| void test04() |
| { |
| bool test = true; |
| |
| const char* strlit00 = "orvieto"; |
| const std::string str00 = strlit00; |
| |
| std::ostringstream oss; |
| |
| oss.str(str00); |
| oss << "cortona"; |
| VERIFY( str00 == strlit00 ); |
| } |
| |
| int main() |
| { |
| test01(); |
| test02(); |
| test03(); |
| test04(); |
| return 0; |
| } |