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# 9 Random Number Functions

Sequences of pseudo-random numbers in GMP are generated using a variable of
type `gmp_randstate_t`

, which holds an algorithm selection and a current
state. Such a variable must be initialized by a call to one of the
`gmp_randinit`

functions, and can be seeded with one of the
`gmp_randseed`

functions.

The functions actually generating random numbers are described in Random Number Functions, and Miscellaneous Functions.

The older style random number functions don’t accept a `gmp_randstate_t`

parameter but instead share a global variable of that type. They use a
default algorithm and are currently not seeded (though perhaps that will
change in the future). The new functions accepting a `gmp_randstate_t`

are recommended for applications that care about randomness.

9.1 Random State Initialization | ||

9.2 Random State Seeding | ||

9.3 Random State Miscellaneous |

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