clipm_priv_math.h

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/*********************************************************************
 * E.S.O. - VLT project
 *
 * "@(#) $Id: clipm_priv_math.h 166626 2008-04-24 15:49:12Z hlorch $"
 *
 * Inline, non-public functions for basic mathematical operations
 *
 * who       when        what
 * --------  ----------  ----------------------------------------------
 * hlorch    2006-08-21  created
 */
 
#ifndef CLIPM_PRIV_MATH_H
#define CLIPM_PRIV_MATH_H
 
/*-----------------------------------------------------------------------------
    Includes
 -----------------------------------------------------------------------------*/
 
/*-----------------------------------------------------------------------------
    Function Macros
 -----------------------------------------------------------------------------*/
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
#define clipm_priv_math_max(a, b) \
    ((a) > (b) ? (a) : (b))
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
#define clipm_priv_math_min(a, b) \
    ((a) < (b) ? (a) : (b))
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
#define clipm_priv_math_sign(in) \
    ((in) >= 0 ? 1 : -1)
 
/*-----------------------------------------------------------------------------
    Declaration Block
 -----------------------------------------------------------------------------*/
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
#define clipm_priv_math_round_d2i(in) \
    ((in < 0) ? (int)(in - 0.5) : (int)(in + 0.5))
 
/*----------------------------------------------------------------------------*/
 
#ifdef __cplusplus
}   /* extern "C" */
#endif
 
#endif  /* CLIPM_PRIV_MATH_H */