52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
|
// normrnd.h
|
||
|
|
// Functions to generate gaussian distributed numbers
|
||
|
|
//
|
||
|
|
// (c) 2016 - Nico Palermo, IV3NWV - Microtelecom Srl, Italy
|
||
|
|
// ------------------------------------------------------------------------------
|
||
|
|
// This file is part of the qracodes project, a Forward Error Control
|
||
|
|
// encoding/decoding package based on Q-ary RA (Repeat and Accumulate) LDPC codes.
|
||
|
|
//
|
||
|
|
// qracodes is free software: you can redistribute it and/or modify
|
||
|
|
// it under the terms of the GNU General Public License as published by
|
||
|
|
// the Free Software Foundation, either version 3 of the License, or
|
||
|
|
// (at your option) any later version.
|
||
|
|
// qracodes is distributed in the hope that it will be useful,
|
||
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
// GNU General Public License for more details.
|
||
|
|
|
||
|
|
// You should have received a copy of the GNU General Public License
|
||
|
|
// along with qracodes source distribution.
|
||
|
|
// If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
#ifndef _normrnd_h_
|
||
|
|
#define _normrnd_h_
|
||
|
|
|
||
|
|
#define _CRT_RAND_S
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
#define _USE_MATH_DEFINES
|
||
|
|
#include <math.h>
|
||
|
|
#define M_2PI (2.0f*(float)M_PI)
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void normrnd_s(float *dst, int nitems, float mean, float stdev);
|
||
|
|
// generate a random array of numbers with a gaussian distribution of given mean and stdev
|
||
|
|
// use MS rand_s(...) function
|
||
|
|
|
||
|
|
/* not used
|
||
|
|
void normrnd(float *dst, int nitems, float mean, float stdev);
|
||
|
|
// generate a random array of numbers with a gaussian distribution of given mean and stdev
|
||
|
|
// use MS rand() function
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif // _normrnd_h_
|
||
|
|
|