mirror of https://github.com/PentHertz/srsLTE.git
45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2014 The libLTE Developers. See the
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* COPYRIGHT file at the top-level directory of this distribution.
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*
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* \section LICENSE
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*
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* This file is part of the libLTE library.
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*
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* libLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* libLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* A copy of the GNU Lesser General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#include <string.h>
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#include <stdlib.h>
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#include <math.h>
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float rand_gauss (void) {
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float v1,v2,s;
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do {
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v1 = 2.0 * ((float) rand()/RAND_MAX) - 1;
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v2 = 2.0 * ((float) rand()/RAND_MAX) - 1;
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s = v1*v1 + v2*v2;
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} while ( s >= 1.0 || s == 0.0);
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return (v1*sqrt(-2.0 * log(s) / s));
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}
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