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EST_inline_utils.h
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33 
34 /**@name EST_inline_utils.h
35  * Some simple inline functions gathered together in one place.
36  * <p>
37  * @author Richard Caley <rjc@cstr.ed.ac.uk>
38  * @version $Id: EST_inline_utils.h,v 1.3 2004/05/04 00:00:17 awb Exp $
39  */
40 
41 //@{
42 
43 #ifndef __EST_INLINE_UTILS_H__
44 #define __EST_INLINE_UTILS_H__
45 
46 /// Round to nearest integer
47 static inline int irint(float f) { return (int)(f+0.5); }
48 /// Round to nearest integer
49 static inline int irint(double f) { return (int)(f+0.5); }
50 /// Round to nearest integer
51 static inline int srint(float f) { return (short)(f+0.5); }
52 /// Round to nearest integer
53 static inline int srint(double f) { return (short)(f+0.5); }
54 /// Round down
55 static inline int ifloor(float f) { return (int)(f); }
56 /// Round up
57 static inline int iceil(float f) { return (int)(f+0.9999999); }
58 
59 /// Smaller of two ints
60 static inline int min(int a, int b) { return (a<b)?a:b; }
61 /// Larger of two ints
62 static inline int max(int a, int b) { return (a>b)?a:b; }
63 /// Smaller of two floats
64 static inline float min(float a, float b) { return (a<b)?a:b; }
65 /// Larger of two floats
66 static inline float max(float a, float b) { return (a>b)?a:b; }
67 /// Smaller of two doubles
68 static inline double min(double a, double b) { return (a<b)?a:b; }
69 /// Larger of two doubles
70 static inline double max(double a, double b) { return (a>b)?a:b; }
71 
72 /// Absolute value.
73 static inline short absval(short n) { return n<0?-n:n; }
74 /// Absolute value.
75 static inline int absval(int n) { return n<0?-n:n; }
76 /// Absolute value.
77 static inline float absval(float n) { return n<0.0?-n:n; }
78 /// Absolute value.
79 static inline double absval(double n) { return n<0.0?-n:n; }
80 
81 #endif
82 //@}