shithub: purgatorio

ref: 254b07675e1a5348f2a8723f55e6b5b1b18a4721
dir: purgatorio/libmp/port/mpmod.c

View raw version 
#include "os.h"
#include <mp.h>
#include "dat.h"

// remainder = b mod m
//
// knuth, vol 2, pp 398-400

void
mpmod(mpint *b, mpint *m, mpint *remainder)
{
	mpdiv(b, m, nil, remainder);
	if(remainder->sign < 0)
		mpadd(m, remainder, remainder);
}