Computes the quotient and remainder of a long integer.
ldiv_t ldiv( long int numer, long int denom );
Routine | Required Header | Compatibility |
ldiv | <stdlib.h> | ANSI, Win 95, Win NT |
For additional compatibility information, see Compatibility in the Introduction.
Libraries
LIBC.LIB | Single thread static library, retail version |
LIBCMT.LIB | Multithread static library, retail version |
MSVCRT.LIB | Import library for MSVCRT.DLL, retail version |
Return Value
ldiv returns a structure of type ldiv_t that comprises both the quotient and the remainder.
Parameters
numer
Numerator
denom
Denominator
Remarks
The ldiv function divides numer by denom, computing the quotient and remainder. The sign of the quotient is the same as that of the mathematical quotient. The absolute value of the quotient is the largest integer that is less than the absolute value of the mathematical quotient. If the denominator is 0, the program terminates with an error message. ldiv is the same as div, except that the arguments of ldiv and the members of the returned structure are all of type long int.
The ldiv_t structure, defined in STDLIB.H, contains long int quot, the quotient, and long int rem, the remainder.
Example
/* LDIV.C: This program takes two long integers
* as command-line arguments and displays the
* results of the integer division.
*/
#include <stdlib.h>
#include <math.h>
#include <stdio.h>
void main( void )
{
long x = 5149627, y = 234879;
ldiv_t div_result;
div_result = ldiv( x, y );
printf( "For %ld / %ld, the quotient is ", x, y );
printf( "%ld, and the remainder is %ld\n",
div_result.quot, div_result.rem );
}
Output
For 5149627 / 234879, the quotient is 21, and the remainder is 217168
Floating-Point Support Routines
See Also div