ZFCoreUtilMath.h File Reference

math utilities for ZFFramework More...

#include "ZFComparer.h"

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Functions
template<typename T_Number>
T_Number const &	zfmMax (T_Number const &n0, T_Number const &n1)
	well known MAX
template<typename T_Number>
T_Number const &	zfmMin (T_Number const &n0, T_Number const &n1)
	well known MIN
template<typename T_Number>
T_Number	zfmAbs (T_Number const &n0)
	well known ABS
template<typename T_Number>
T_Number	zfmApplyRange (T_Number const &n, T_Number const &nMin, T_Number const &nMax)
	return n if in range [nMin, nMax], return edge value otherwise
template<typename T_Number>
T_Number	zfmApplyProgress (T_Number const &start, T_Number const &end, zffloat progress)
	return value at progress in range [start, end], progress must in range [0, 1]
template<typename T_zffloat>
T_zffloat	zfmRoundUp (const T_zffloat &v)
	util method to round up/down or round a float value
template<typename T_zffloat>
T_zffloat	zfmRoundDown (const T_zffloat &v)
	util method to round up/down or round a float value
template<typename T_zffloat>
T_zffloat	zfmRound (const T_zffloat &v)
	util method to round up/down or round a float value
zffloat	zfmRand (void)
	return a random float in range [0, 1]
template<typename T_int>
T_int	zfmRand (T_int const &range)
	return a random number range [0, range) or 0 if range is 0 or negative
template<typename T_int>
T_int	zfmRand (T_int const &start, T_int const &end)
	return a random number range [start, end) or 0 if range invalid
template<typename T_Element, typename T_Holder>
zfbool	zfmSort (T_Holder &holder, zfindex left, zfindex right, typename ZFComparer< T_Element >::Comparer comparer=_ZFP_ZFComparerDefault)
	sort with custom comparer in range [left, right], holder must support operator []
template<typename T_Element, typename T_Holder>
zfbool	zfmSortReversely (T_Holder &holder, zfindex left, zfindex right, typename ZFComparer< T_Element >::Comparer comparer=_ZFP_ZFComparerDefault)
	sort with custom comparer in range [left, right], holder must support operator []

Detailed Description

math utilities for ZFFramework

Function Documentation

zfmApplyRange()

template<typename T_Number>

T_Number zfmApplyRange ( T_Number const & n, T_Number const & nMin, T_Number const & nMax )

inline

return n if in range [nMin, nMax], return edge value otherwise

return value in range [nMin, infinite) if nMax < mMin