reading binary file content into an mpz_t variable
tg at gmplib.org
Mon Jan 17 08:48:39 CET 2011
Erick Paquin <info at erickpaquin.com> writes:
I would basically like to read the "entire" content of a file (its
hex/binary content) into an mpz_t variable for later processing.
I've tried with both the mpz_inp_str and the mpz_inp_raw functions and when
I try to see the number of bytes read from these functions it always either
returns 0 (as if an error occurred) or it crashes the application with a
memory segmentation fault.
Then you've done something wrong, I am afraid.
Actually I am not also 100% sure of how to "read" the size_t returned value
from the gmp functions (do you assign the function to an int variable and
read it?). Any help on that too would be awesome.
I don't understand what you don't understand. Aren't the return values
unambiguously documented in the GMP manial?
How would you go about in the simplest way possible read the entire content
of a file into an mpz_t variable?
I\d you mpz_inp_str, mpz_inp_raw, or perhaps stdio followed by a
mpz_import, depemnding on the file format.
I've also tried with fread which actually works but then to transfer the
content of my fread into an mpz_t variable I couldn't find how.
There are functions for that, mentioned in the manual.
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