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Sequences of pseudo-random numbers in GMP are generated using a variable of
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
The functions actually generating random numbers are described in Integer Random Numbers, and Miscellaneous Float Functions.
The older style random number functions don’t accept a
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
are recommended for applications that care about randomness.
|• Random State Initialization|
|• Random State Seeding|
|• Random State Miscellaneous|