EST_inline_utils.h

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/**@name EST_inline_utils.h
  * Some simple inline functions gathered together in one place.
  * <p>
  * @author Richard Caley <rjc@cstr.ed.ac.uk>
  * @version $Id: EST_inline_utils.h,v 1.3 2004/05/04 00:00:17 awb Exp $
  */

//@{

#ifndef __EST_INLINE_UTILS_H__
#define __EST_INLINE_UTILS_H__

/// Round to nearest integer
static inline int irint(float f) { return (int)(f+0.5); }
/// Round to nearest integer
static inline int irint(double f) { return (int)(f+0.5); }
/// Round to nearest integer
static inline int srint(float f) { return (short)(f+0.5); }
/// Round to nearest integer
static inline int srint(double f) { return (short)(f+0.5); }
/// Round down
static inline int ifloor(float f) { return (int)(f); }
/// Round up
static inline int iceil(float f) { return (int)(f+0.9999999); }

/// Smaller of two ints
static inline int min(int a, int b) { return (a<b)?a:b; }
/// Larger of two ints
static inline int max(int a, int b) { return (a>b)?a:b; }
/// Smaller of two floats
static inline float min(float a, float b) { return (a<b)?a:b; }
/// Larger of two floats
static inline float max(float a, float b) { return (a>b)?a:b; }
/// Smaller of two doubles
static inline double min(double a, double b) { return (a<b)?a:b; }
/// Larger of two doubles
static inline double max(double a, double b) { return (a>b)?a:b; }

/// Absolute value.
static inline short  absval(short n) { return n<0?-n:n; }
/// Absolute value.
static inline int    absval(int n) { return n<0?-n:n; }
/// Absolute value.
static inline float  absval(float n) { return n<0.0?-n:n; }
/// Absolute value.
static inline double absval(double n) { return n<0.0?-n:n; }

#endif
//@}