#include <stdlib.h> ldiv_t ldiv(long int numer, long int denom);
ldiv
computes the quotient and remainder of numer
divided by
denom
.
div
returns a structure of type ldiv_t
, which contains both the
quotient and remainder. The definition of the ldiv_t
type is
typedef struct { long rem; long quot; }ldiv_t;
The return value is such that
numer == quot * denom + rem
The sign of rem
is the same as the sign of numer
.
ldiv
:
#include <math.h> #include <stdlib.h> #include <lcmath.h> main() { double rad, angle; long deg, min, sec; ldiv_t d; puts(" Enter any angle in radians: "); scanf("%f", &rad); /* Convert angles to seconds and discard fraction. */ angle = rad * (180 * 60 * 60)/M_PI; sec = angle; d = ldiv(sec, 60L); sec = d.rem; d = ldiv(d.quot, 60L); min = d.rem; deg = d.quot; printf("%f radians = %ld degrees, %ld, %ldn", rad, deg, min, sec); }
div
Copyright (c) 1998 SAS Institute Inc. Cary, NC, USA. All rights reserved.