ldiv(S)                        6 January 1993                        ldiv(S)


 Name

    ldiv - divides long integers

 Syntax


    cc  . . .  -lc


    #include  <stdlib.h>

    struct ldiv_t
            {
            long quot;     /* Quotient  */
            long rem;      /* Remainder */
            }
    ldiv(numerator, denominator)
    long numerator;
    long denominator;


 Description

    The ldiv routine divides the numerator by the denominator, computing the
    quotient and the remainder.  The sign of the quotient is the same as that
    of the mathematical quotient.  Its absolute value is the largest integer
    which is less than the absolute value of the mathematical quotient.  If
    the denominator is zero, the program terminates with an error message.

    The ldiv function is similar to the div function, the difference being
    that the arguments and the members of the returned structure are all of
    type long int.

 Return value

    The ldiv function returns a structure of type ldivt , comprising both
    the quotient and the remainder.  The structure is defined in stdlib.h.

 Example


       #include <stdlib.h>
       #include <math.h>

       main(argc, argv)
       int argc;
       char **argv;
        {
               long int x,y;
               ldiv_t div_result;

               x = atol(argv[1]);
               y = atol(argv[2]);
               printf("x is %ld, y is %ld\n", x, y);

               div_result = ldiv(x,y);
               printf("The quotient is %ld, and the remainder is %ld\n",
                       div_result.quot, div_result.rem);
        }


    This program takes two long integers as command line arguments and dis-
    plays the results of the integer division.

 See also

    div(S)

 Standards conformance

    ldiv is conformant with:
    ANSI X3.159-1989 Programming Language -- C.