27 lines
806 B
C
27 lines
806 B
C
#ifndef SQUIGGLEC
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#define SQUIGGLEC
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// uint32_t header
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#include <stdint.h>
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// Pseudo Random number generator
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uint32_t xorshift32(uint32_t* seed);
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// Distribution & sampling functions
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float rand_0_to_1(uint32_t* seed);
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float rand_float(float max, uint32_t* seed);
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float ur_normal(uint32_t* seed);
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float random_uniform(float from, float to, uint32_t* seed);
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float random_normal(float mean, float sigma, uint32_t* seed);
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float random_lognormal(float logmean, float logsigma, uint32_t* seed);
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float random_to(float low, float high, uint32_t* seed);
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// Array helpers
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float array_sum(float* array, int length);
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void array_cumsum(float* array_to_sum, float* array_cumsummed, int length);
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// Mixture function
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float mixture(float (*samplers[])(uint32_t*), float* weights, int n_dists, uint32_t* seed);
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#endif
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