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56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/**
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******************************************************************************
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* @addtogroup OpenPilot Math Utilities
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* @{
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* @addtogroup Reuseable math functions
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* @{
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*
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* @file mathmisc.h
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2012.
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* @brief Reuseable math functions
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*
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* @see The GNU Public License (GPL) Version 3
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*
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef MATHMISC_H
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#define MATHMISC_H
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// returns min(boundary1,boundary2) if val<min(boundary1,boundary2)
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// returns max(boundary1,boundary2) if val>max(boundary1,boundary2)
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// returns val if min(boundary1,boundary2)<=val<=max(boundary1,boundary2)
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static inline float boundf(float val, float boundary1, float boundary2)
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{
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if (boundary1 > boundary2) {
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if (!(val >= boundary2)) {
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return boundary2;
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} else if (!(val <= boundary1)) {
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return boundary1;
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}
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} else {
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if (!(val >= boundary1)) {
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return boundary1;
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} else if (!(val <= boundary2)) {
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return boundary2;
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}
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}
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return val;
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}
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#endif /* MATHMISC_H */
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