REMAINDER(3) BSD Library Functions Manual REMAINDER(3)

NAME
     rreemmaaiinnddeerr - floating-point remainder function

SYNOPSIS
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     double
     rreemmaaiinnddeerr(double x, double y);

     long double
     rreemmaaiinnddeerrll(long double x, long double y);

     float
     rreemmaaiinnddeerrff(float x, float y);

DESCRIPTION
     The rreemmaaiinnddeerr() functions compute the value r such that r = x - n*y,
     where n is the integer nearest the exact value of x/y.

     If there are two integers closest to x/y, n shall be the even one. If r
     is zero, it is given the same sign as x.

SSPPEECCIIAALL VVAALLUUEESS
     rreemmaaiinnddeerr(x, y) returns a NaN and raises the "invalid" floating-point
     exception if x is infinite or y is 0.

SEE ALSO
     math(3)

STANDARDS     The rreemmaaiinnddeerr() functions conform to ISO/IEC 9899:1999(E).

BSD                              July 22, 2003                             BSD