| /************************************************************************** |
| * |
| * numpunct.cpp - Example program for the numpunct facet. |
| |
| * $Id$ |
| * |
| *************************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed |
| * with this work for additional information regarding copyright |
| * ownership. The ASF licenses this file to you under the Apache |
| * License, Version 2.0 (the "License"); you may not use this file |
| * except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| * implied. See the License for the specific language governing |
| * permissions and limitations under the License. |
| * |
| * Copyright 1994-2006 Rogue Wave Software. |
| * |
| **************************************************************************/ |
| |
| #include <iostream> // for cerr, cout |
| #include <locale> // for locale, numpunct, use_facet |
| #include <stdexcept> // for runtime_error |
| |
| #include <examples.h> |
| |
| |
| static std::locale |
| make_german_locale () |
| { |
| static const char* const |
| locale_names [] = { |
| "de_DE.ISO8859-1", // AIX, Solaris, Tru64 |
| "de_DE.iso88591", // HP-UX, Linux |
| "de_DE.88591", |
| "De_DE.88591", // Reliant |
| "de_DE", |
| "de", // Linux, Solaris |
| "German", |
| "german", // Linux |
| "deutsch", // Linux |
| "german_germany.1252", // Windows |
| 0 // (sentinel) |
| }; |
| |
| std::locale german; |
| |
| // iterate over the know locale names above until a valid one |
| // is found (i.e., one that doesn't cause locale to throw) |
| for (const char* const *names = locale_names; ; ) { |
| try { |
| german = std::locale (names [0]); |
| break; |
| } |
| catch (std::runtime_error&) { |
| // continue trying until the next name is null |
| if (0 == *++names) |
| throw; |
| } |
| catch (...) { |
| throw; |
| } |
| } |
| |
| return german; |
| } |
| |
| |
| int main () |
| { |
| typedef std::numpunct<char> Numpunct; |
| |
| try { |
| // try to contruct a german locale |
| const std::locale german (make_german_locale ()); |
| |
| // obtain a numpunct facet for the german locale |
| const Numpunct &np = std::use_facet<Numpunct>(german); |
| |
| std::cout << "German locale" |
| << "\nDecimal point = " << np.decimal_point () |
| << "\nThousands separator = " << np.thousands_sep () |
| << "\nTrue name = " << np.truename () |
| << "\nFalse name = " << np.falsename() |
| << '\n'; |
| } |
| catch (std::runtime_error& e) { |
| // a runtime_error will be thrown if the locale cannot be constructed |
| std::cerr << "Caught runtime_error:\n"; |
| std::cerr << e.what () << '\n'; |
| } |
| catch (...) { |
| std::cerr << "Caught an unknown exception\n"; |
| } |
| return 0; |
| } |
