floor(3M) Mathematical Library Functions floor(3M)
NAME
floor, floorf, floorl - floor function
SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#include <math.h>
double floor(double x);
float floorf(float x);
long double floorl(long double x);
DESCRIPTION
These functions compute the largest integral value not greater than x.
RETURN VALUES
Upon successful completion, these functions return the largest integral value not greater than x, expressed as a double, float, or long
double, as appropriate for the return type of the function.
If x is NaN, a NaN is returned.
If x is +-Inf or +-0, x is returned.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
ceil(3M), feclearexcept(3M), fetestexcept(3M), isnan(3M), math.h(3HEAD), attributes(5), standards(5)
SunOS 5.11 12 Jul 2006 floor(3M)
