How to know the size of a declared variable in GMP??or how can we decide the size of an integer in GMP?
mpz_random(temp,1);
in manual it is given that this function allocates 1limb(=32bits for my comp) size to the "temp".... but it is having 9 digit number only.. SO i dont think that 32 bit size number holds only 9 digits number..
So please help me to know the size of integer variable in GMP ..
thanks in adv..
32 bits (4 bytes) really can be used to store only 9 decimal digits
2^32 = 4 294 967 296
so only 9 full decimal digits here (the 10th is in interval from 0 up 4, so it is not full).
You can recompute this via logarithms:
log_10(2^32)
let's ask google
log base 10(2^32) = 9.63295986
Everything is correct.