Allocates and initializes constants for the uniform distribution with specified parameters

Syntax

svrng_distribution_t svrng_new_uniform_distribution_int( int a, int b )

svrng_distribution_t svrng_new_uniform_distribution_float( float a, float b )

svrng_distribution_t svrng_new_uniform_distribution_double( double a, double b )

svrng_distribution_t svrng_update_uniform_distribution_int( svrng_distribution_t distr, int a, int b )

svrng_distribution_t svrng_update_uniform_distribution_float( svrng_distribution_t distr, float a, float b )

svrng_distribution_t svrng_update_uniform_distribution_double( svrng_distribution_t distr, double a, double b )

Input Parameters

a

Left bound of interval

b

Right bound of interval

distr

Pointer to the distribution to be updated

Description

The svrng_new_uniform_distribution_[int|float|double] function allocates memory for a uniform distribution and pre-computes and broadcasts loop-invariant constants required for vector generation of uniformly distributed values over the interval [a, b), where a, b are the real left and right bounds of the interval respectively with a < b. 32-bit int, float and double types are supported. The svrng_update_uniform_distribution_[int|float|double] functions give the same result, but by modifying existing distributions instead of allocating memory for new distributions.

Status flags set

Name

Description

SVRNG_STATUS_ERROR_MEMORY_ALLOC

Memory allocation failure

SVRNG_STATUS_ERROR_BAD_PARAMS

a>=b

SVRNG_STATUS_ERROR_BAD_DISTR

Bad distribution (NULL pointer)

Return Values

A pointer to the distribution created or updated by the function, or NULL on error.

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