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17.7 Copying random number generator state

The above methods do not expose the random number `state' which changes from call to call. It is often useful to be able to save and restore the state. To permit these practices, a few somewhat more advanced functions are supplied. These include:

Function: int gsl_rng_memcpy (gsl_rng * dest, const gsl_rng * src)

This function copies the random number generator src into the pre-existing generator dest, making dest into an exact copy of src. The two generators must be of the same type.

Function: gsl_rng * gsl_rng_clone (const gsl_rng * r)

This function returns a pointer to a newly created generator which is an exact copy of the generator r.

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