shithub: purgatorio

ref: a411870ee4640241e3c494367d922847da84f972
dir: /limbo/dtocanon.c/

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#include "limbo.h"

void
dtocanon(double f, ulong v[])
{
	union { double d; ulong ul[2]; } a;

	a.d = 1.;
	if(a.ul[0]){
		a.d = f;
		v[0] = a.ul[0];
		v[1] = a.ul[1];
	}else{
		a.d = f;
		v[0] = a.ul[1];
		v[1] = a.ul[0];
	}
}

double
canontod(ulong v[2])
{
	union { double d; unsigned long ul[2]; } a;

	a.d = 1.;
	if(a.ul[0]) {
		a.ul[0] = v[0];
		a.ul[1] = v[1];
	}
	else {
		a.ul[1] = v[0];
		a.ul[0] = v[1];
	}
	return a.d;
}