Basic Mathematical Operations

Functions for basic mathematical operations. More...

Files
file	bitUtils.h

Macros
#define	TF_BITS_FOR_VALUES(n)
	Compute the number of bits required to store the given number of values.
#define	TF_BITS_FOR_ENUM_VALUES(n)
	Compute the number of bits required to store the given number of (signed) enum values.

Functions
int	TfAbs (int v)
	Returns the absolute value of the given int value.
double	TfAbs (double v)
	Returns the absolute value of the given double value.
template<class T >
T	TfMin (const T &v1, const T &v2)
	Returns the smaller of the two given values.
template<class T >
T	TfMax (const T &v1, const T &v2)
	Returns the larger of the two given values.

Detailed Description

Functions for basic mathematical operations.

Macro Definition Documentation

TF_BITS_FOR_ENUM_VALUES

#define TF_BITS_FOR_ENUM_VALUES

(

n

)

Compute the number of bits required to store the given number of (signed) enum values.

Note

This is intended to be used when storing enum values in a bitfield without casting the enum type to an unsigned integer. (At least GCC considers enums to be signed and hence wastes one bit when all enumerants are non-negative).

Definition at line 60 of file bitUtils.h.

TF_BITS_FOR_VALUES

#define TF_BITS_FOR_VALUES

(

n

)

Compute the number of bits required to store the given number of values.

Note that the computed result for a number smaller or equal to zero is undefined. The input number can be any compile-time constant.

Definition at line 27 of file bitUtils.h.

Function Documentation

TfAbs() [1/2]

double TfAbs ( double  v )

inline

Returns the absolute value of the given double value.

Definition at line 49 of file tf.h.

TfAbs() [2/2]

int TfAbs ( int  v )

inline

Returns the absolute value of the given int value.

Definition at line 44 of file tf.h.

TfMax()

T TfMax ( const T &  v1, const T &  v2  )

inline

Returns the larger of the two given values.

Definition at line 61 of file tf.h.

TfMin()

T TfMin ( const T &  v1, const T &  v2  )

inline

Returns the smaller of the two given values.

Definition at line 55 of file tf.h.