FLOOR(3) BSD Library Functions Manual FLOOR(3)
NAME
floor -- round to largest integral value not greater than x
SYNOPSIS
#include <math.h>
double
floor(double x);
long double
floorl(long double x);
float
floorf(float x);
DESCRIPTION
The floor() functions return the largest integral value less than or equal to x.
SPECIAL VALUES
floor(+-0) returns +-0.
floor(+-infinity) returns +-infinity.
VECTOR OPERATIONS
If you need to apply the floor() function to SIMD vectors or arrays, using the following functions provided by the Accelerate.framework may
give significantly better performance:
#include <Accelerate/Accelerate.h>
vFloat vfloorf(vFloat x);
void vvfloorf(float *y, const float *x, const int *n);
void vvfloor(double *y, const double *x, const int *n);
SEE ALSO
ceil(3), round(3), trunc(3), math(3)
STANDARDS
The floor() functions conform to ISO/IEC 9899:2011.
BSD
December 11, 2006 BSD
