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FLOOR 3M "Jul 12, 2006" "SunOS 5.11" "Mathematical Library Functions"
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(7) for descriptions of the following attributes:
| ATTRIBUTE TYPE ATTRIBUTE VALUE |
| Interface Stability Standard |
| MT-Level MT-Safe |
SEE ALSO
math.h (3HEAD), ceil (3M), feclearexcept (3M), fetestexcept (3M), isnan (3M), attributes (7), standards (7)