author | hgs |
Tue, 20 Jul 2010 16:35:53 +0530 | |
changeset 44 | 97b0fb8a2cc2 |
parent 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
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/*********************************************************************************** |
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random_number.cpp |
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|
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* Copyright (c) 1997 |
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* Mark of the Unicorn, Inc. |
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* |
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* Permission to use, copy, modify, distribute and sell this software |
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* and its documentation for any purpose is hereby granted without fee, |
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* provided that the above copyright notice appear in all copies and |
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* that both that copyright notice and this permission notice appear |
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* in supporting documentation. Mark of the Unicorn makes no |
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* representations about the suitability of this software for any |
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* purpose. It is provided "as is" without express or implied warranty. |
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|
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***********************************************************************************/ |
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#include "random_number.h" |
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#include "Prefix.h" |
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#if defined (EH_NEW_HEADERS) |
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# include <functional> |
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# include <cstdlib> |
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#else |
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# include <function.h> |
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# include <stdlib.h> |
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#endif |
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unsigned random_number( size_t range ) |
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{ |
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#if !defined( __SGI_STL ) |
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if (range == 0) return 0; |
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return (unsigned)(EH_STD::rand() + EH_STD::rand()) % range; |
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#else |
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static EH_STD::subtractive_rng rnd; |
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if (range==0) return 0; |
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return rnd(range); |
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#endif |
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} |
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// default base for random container sizes |
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unsigned random_base = 1000; |