50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/*
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random.h - Function prototypes for a random-number generator supporting normal
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distributions
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Copyright (C) 2014 Simon D. Levy
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This code is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This code is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this code. If not, see <http:#www.gnu.org/licenses/>.
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*/
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#include "stdlib.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Returns size of random-number generator in bytes */
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size_t random_size(void);
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/* Creates and initializes a new random-number generator */
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void * random_new(int seed);
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/* Initializes a random-number generator */
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void random_init(void * r, int seed);
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/* Make a copy of the specified random-number generator */
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void * random_copy(void * r);
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/* Deallocates memory for a random-number generator */
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void random_free(void * v);
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/* Returns a standard normal variate with mean mu, variance sigma */
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double random_normal(void * v, double mu, double sigma);
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#ifdef __cplusplus
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}
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#endif
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