alibFloor

alibFloor

Applies the floor function to each element of an array. The PV-WAVE API for this routine is the GREAT_INT Function.

Prototypes

void alibFloorf( wvlong n, float *p, float *r )

void alibFloord( wvlong n, double *p, double *r )

Parameters

n — (Input) The number of elements in the array.

*p — (Input) The n-element source array.

*r — (Input/Output) The destination array. On return, r[i] = floor(p[i]). This operation can be done in-place, i.e., r can equal p.

Example

#include <stdio.h>

#include <stdlib.h>

#include <math.h>

#include "alib.h"

void main() {

   /* make up some data for the examples */

   float  f0[5]={0.25,1.5,2.75,3,4.75}, *f;

   /* make output array */

   f = (float*)malloc(5*sizeof(float));

   printf( "\n\n show array f0" );

      alibinit( NULL, NULL, NULL, NULL );

      alibPrintArrayf( 1, 1, 1, 5, f0, NULL );

   printf( "\n\n show the floor of each element in f0" );

      alibFloorf( 5, f0, f );

      alibPrintArrayf( 1, 1, 1, 5, f, NULL );

Output:

 show array f0

   2.500e-01   1.500e+00   2.750e+00   3.000e+00   4.750e+00

 show the floor of each element in f0

   0.000e+00   1.000e+00   2.000e+00   3.000e+00   4.000e+00

Version 2017.1