#include "platform.h"#include "mp.h" /* return uniform random [0..n-1] */mpint*mpnrand(mpint *n, void (*gen)(u8int*, int), mpint *b){	int bits; 	bits = mpsignif(n);	if(bits == 0)		abort();	if(b == nil)		b = mpnew(bits);	do{		mprand(bits, gen, b);	}while(mpmagcmp(b, n) >= 0); 	return b;}