tg at gmplib.org
Sat Apr 9 16:02:20 CEST 2011
Daniele Varrazzo <daniele.varrazzo at gmail.com> writes:
Are the _ui variants of the functions just a convenience wrapper to
simplify writing C code without allocation/initialization of one of
the arguments, or are they wrapper for a implementation faster than
the algorithms used in the more generic case?
The _ui variants are faster iff an argument is an 'unsigned long'. It
will then save the time to assign the unsigned long to an mpz_t
variable, and perhaps for mpz_init/mpz_clear.
If the value is already in an mpz_t, you should not extract it and call
an _ui function.
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