author | William Roberts <williamr@symbian.org> |
Tue, 22 Jun 2010 22:03:38 +0100 | |
branch | GCC_SURGE |
changeset 39 | 4393da0c39b5 |
parent 18 | 47c74d1534e1 |
child 44 | 97b0fb8a2cc2 |
child 45 | 4b03adbd26ca |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
0
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#ifndef _unary_h |
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#define _unary_h |
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#include <cmath> |
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#include <cfloat> |
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#include <functional> //*TY 12/26/1998 - added to get unary_function |
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|
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#if !defined (STLPORT) || defined (_STLP_USE_NAMESPACES) |
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using std::unary_function; |
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#endif |
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struct odd : public unary_function<int, bool> |
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{ |
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// odd() {} |
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bool operator()(int n_) const { return(n_ % 2) == 1; } |
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}; |
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struct positive : public unary_function<int, bool> |
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{ |
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typedef int argument_type; |
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typedef bool result_type; |
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// positive() {} |
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bool operator()(int n_) const { return n_ >= 0; } |
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}; |
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struct square_root : public unary_function<double, double> |
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{ |
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typedef double argument_type; |
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typedef double result_type; |
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square_root() {} |
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square_root(const square_root &) {} |
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double operator()(double x_) const |
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{ return ::sqrt(x_); } |
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}; |
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#endif // _unary_h |