89 lines
2.6 KiB
C++
89 lines
2.6 KiB
C++
/**************************************************************************
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*
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* numget.cpp - Example program for the numget facet.
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*
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* $Id: num_get.cpp 550991 2007-06-26 23:58:07Z sebor $
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*
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***************************************************************************
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*
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* Copyright 1994-2006 Rogue Wave Software.
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*
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**************************************************************************/
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#include <iostream> // for cout, endl
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#include <sstream> // for istringstream
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#include <string> // for string
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int main ()
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{
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typedef std::istreambuf_iterator<char, std::char_traits<char> > Iter;
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std::ios::iostate state;
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Iter end;
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bool bval = false;
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long lval = 0L;
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long double ldval = 0.0;
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const std::locale loc;
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// Get a num_get facet
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const std::num_get<char, Iter> &ng =
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std::use_facet<std::num_get<char, Iter> >(loc);
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#ifndef _RWSTD_NO_BOOL
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{
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// Build an istringstream from the buffer and construct
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// beginning and ending iterators on it.
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std::istringstream ins ("true");
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Iter begin (ins);
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// Set stream flags to recognize boolalpha input.
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ins.setf (std::ios::boolalpha);
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// Get the boolean value from the stream.
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ng.get (begin, end, ins, state, bval);
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}
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#endif
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std::cout << bval << std::endl;
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{
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// Get the date
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std::istringstream ins ("2422235");
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Iter begin (ins);
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ng.get (begin, end, ins, state, lval);
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}
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std::cout << lval << std::endl;
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{
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// Get the weekday
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std::istringstream ins ("32324342.98908");
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Iter begin (ins);
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ng.get (begin, end, ins, state, ldval);
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}
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std::cout.setf (std::ios::fixed, std::ios::floatfield);
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std::cout << ldval << std::endl;
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return 0;
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}
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