conterm/libmp/mptoui.c

36 lines
413 B
C

#include "os.h"
#include <mp.h>
#include "dat.h"
/*
* this code assumes that mpdigit is at least as
* big as an int.
*/
mpint*
uitomp(uint i, mpint *b)
{
if(b == nil)
b = mpnew(0);
mpassign(mpzero, b);
if(i != 0)
b->top = 1;
*b->p = i;
return b;
}
uint
mptoui(mpint *b)
{
uint x;
x = *b->p;
if(b->sign < 0){
x = 0;
} else {
if(b->top > 1 || x > MAXUINT)
x = MAXUINT;
}
return x;
}