72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
/************************************************************************
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*
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* rw_rand.h - declarations of testsuite random number generators
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*
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* $Id: rw_rand.h 453816 2006-10-07 00:12:43Z 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 2005-2006 Rogue Wave Software.
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*
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**************************************************************************/
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#ifndef RW_RAND_H_INCLUDED
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#define RW_RAND_H_INCLUDED
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#include <rw/_defs.h> // for libstd config macros
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#include <testdefs.h> // for test config macros
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// seeds the 32-bit random number generator
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// if the seed is equal UINT32_MAX picks a random value to seed
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// the generator with
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_TEST_EXPORT void
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rw_seed32 (_RWSTD_UINT32_T);
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// returns a 32-bit random number in the range [0, limit)
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// if limit is non-zero, otherwise in the range [0, UINT32_MAX)
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_TEST_EXPORT _RWSTD_UINT32_T
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rw_rand32 (_RWSTD_UINT32_T = 0);
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#ifdef _RWSTD_UINT64_T
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// seeds the 64-bit random number generator
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// if the seed is equal UINT64_MAX picks a random value to seed
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// the generator with
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_TEST_EXPORT void
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rw_seed64 (_RWSTD_UINT64_T);
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// returns a 64-bit random number in the range [0, limit)
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// if limit is non-zero, otherwise in the range [0, UINT64_MAX)
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_TEST_EXPORT _RWSTD_UINT64_T
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rw_rand64 (_RWSTD_UINT64_T = 0);
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# if 32 == _RWSTD_INT_SIZE
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# define rw_seed(limit) rw_seed32 (limit)
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# define rw_rand(limit) rw_rand32 (limit)
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# else // if 32 != _RWSTD_INT_SIZE
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# define rw_seed(limit) rw_seed64 (limit)
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# define rw_rand(limit) rw_rand64 (limit)
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# endif // 32 == _RWSTD_INT_SIZE
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#else // if !defined (_RWSTD_UINT64_T)
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# define rw_seed(limit) rw_seed32 (limit)
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# define rw_rand(limit) rw_rand32 (limit)
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#endif // _RWSTD_UINT64_T
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#endif // RW_RAND_H_INCLUDED
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