floor(3) - NetBSD Manual Pages

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CEIL(3)                 NetBSD Library Functions Manual                CEIL(3)


NAME

     ceil, ceilf, ceill, floor, floorf floorl -- ceiling and floor


LIBRARY

     Math Library (libm, -lm)


SYNOPSIS

     #include <math.h>

     double
     ceil(double x);

     float
     ceilf(float x);

     long double
     ceill(long double x);

     double
     floor(double x);

     float
     floorf(float x);

     long double
     floorl(long double x);


DESCRIPTION

     The ceil(), ceilf(), and ceill() functions return the smallest integral
     value greater than or equal to x.  Conversely, the floor(), floorf(), and
     floorl() functions return the largest integral value less than or equal
     to x.


SEE ALSO

     abs(3), fabs(3), math(3), nextafter(3), rint(3)


STANDARDS

     The described functions conform to ISO/IEC 9899:1999 (``ISO C99'').

NetBSD 7.1.1                   November 12, 2013                  NetBSD 7.1.1