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Diffstat (limited to 'libstdc++-v3/testsuite/27_io/istream_extractor_arith/07.cc')
| -rw-r--r-- | libstdc++-v3/testsuite/27_io/istream_extractor_arith/07.cc | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/27_io/istream_extractor_arith/07.cc b/libstdc++-v3/testsuite/27_io/istream_extractor_arith/07.cc new file mode 100644 index 00000000000..118668ea1d9 --- /dev/null +++ b/libstdc++-v3/testsuite/27_io/istream_extractor_arith/07.cc @@ -0,0 +1,169 @@ +// 1999-04-12 bkoz + +// Copyright (C) 1999, 2000, 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. + +// 27.6.1.2.2 arithmetic extractors + +#include <cstdio> // for printf +#include <istream> +#include <ostream> +#include <sstream> +#include <locale> +#include <testsuite_hooks.h> + +std::string str_01; +std::string str_02("true false 0 1 110001"); +std::string str_03("-19999999 777777 -234234 233 -234 33 1 66300.25 .315 1.5"); +std::string str_04("0123"); + +std::stringbuf isbuf_01(std::ios_base::in); +std::stringbuf isbuf_02(str_02, std::ios_base::in); +std::stringbuf isbuf_03(str_03, std::ios_base::in); +std::stringbuf isbuf_04(str_04, std::ios_base::in); + +std::istream is_01(NULL); +std::istream is_02(&isbuf_02); +std::istream is_03(&isbuf_03); +std::istream is_04(&isbuf_04); +std::stringstream ss_01(str_01); + +namespace std { + class test_numpunct1 : public numpunct<char> + { + protected: + string + do_grouping() const + { return string(1, '\003'); } + }; +} // namespace std + +void test07() +{ + // manufactured locale, grouping is turned on + bool test = true; + unsigned int h4 = 0, h3 = 0, h2 = 0; + float f1 = 0.0; + const std::string s1("205,199 23,445.25 1,024,365 123,22,24"); + std::istringstream is(s1); + is.imbue(std::locale(std::locale(), new std::test_numpunct1)); + + // Basic operation. + is >> h4; + VERIFY( h4 == 205199 ); + VERIFY( is.good() ); + + is.clear(); + is >> f1; + VERIFY( f1 == 23445.25 ); + VERIFY( is.good() ); + + is.clear(); + is >> h3; + VERIFY( h3 == 1024365 ); + VERIFY( is.good() ); + + is.clear(); + is >> h2; + VERIFY( h2 == 0 ); + VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::failbit) ); + VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::eofbit) ); + + // Stress tests for explicit errors in grouping corner cases. The + // validity of these tests and results have been hammered out in + // private email between bkoz and ncm between Jan 25 and Jan 27, 2000. + // Thanks nate -- benjamin + const std::string s2(",111 4,,4 0.25,345 5..25 156,, 1,000000 1000000 1234,567"); + h3 = h4 = h2 = 0; + f1 = 0.0; + const char c_control = '?'; + char c = c_control; + is.clear(); + is.str(s2); + + is >> h4; + VERIFY( h4 == 0 ); + VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::failbit) ); + is.clear(); + is >> c; + VERIFY( c == ',' ); + VERIFY( is.good() ); + + is.ignore(3); + is >> f1; + VERIFY( f1 == 0.0 ); + VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::failbit) ); + is.clear(); + is >> c; + VERIFY( c == ',' ); + is >> c; + VERIFY( c == '4' ); + VERIFY( is.good() ); + + is >> f1; + VERIFY( f1 == 0.25 ); + VERIFY( is.good() ); + is >> c; + VERIFY( c == ',' ); + is >> h2; + VERIFY( h2 == 345 ); + VERIFY( is.good() ); + f1 = 0.0; + h2 = 0; + + is >> f1; + VERIFY( f1 == 5.0 ); + VERIFY( is.good() ); + is >> f1; + VERIFY( f1 == .25 ); + VERIFY( is.good() ); + + is >> h3; + VERIFY( h3 == 0 ); + VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::failbit) ); + is.clear(); + is >> c; + VERIFY( c == ',' ); // second one + VERIFY( is.good() ); + + is >> h2; + VERIFY( h2 == 0 ); + VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::failbit) ); + is.clear(); + + is >> h2; + VERIFY( h2 == 1000000 ); + VERIFY( is.good() ); + h2 = 0; + + is >> h2; + VERIFY( h2 == 0 ); + VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::failbit) ); + VERIFY( static_cast<bool>(is.rdstate() & std::ios_base::eofbit) ); + is.clear(); + +#ifdef DEBUG_ASSERT + assert(test); +#endif +} + +int main() +{ + test07(); + return 0; +} |