unitdouble Class Reference

Maps a normalized double to an integer. More...

#include <unitdouble.h>

Collaboration diagram for unitdouble:

List of all members.

Public Member Functions
uintc	index (doublec &x) const
	The hash function.
boolc	operator() (doublec &a, doublec &b) const
	Compare two doubles.
	unitdouble (uintc bucketsize_)
	Construct the hash function.
Public Attributes
uintc	bucketsize
	Configures the number of buckets.

---

Detailed Description

Maps a normalized double to an integer.

This is a hash function for a uniform distribution. It is assumend the double has been normalized: 0.0 < x < 1.0

Definition at line 12 of file unitdouble.h.

---

Constructor & Destructor Documentation

unitdouble::unitdouble

(

uintc

bucketsize_

)

[inline]

Construct the hash function.

Definition at line 30 of file unitdouble.h.

    : bucketsize(bucketsize_) {}

---

Member Function Documentation

uintc unitdouble::index

(

doublec &

x

)

const [inline]

The hash function.

Definition at line 19 of file unitdouble.h.

References bucketsize.

    { return (uint)((x*bucketsize)) % bucketsize; }

boolc unitdouble::operator()	(	doublec &	a,
		doublec &	b
	)			const [inline]

Compare two doubles.

Definition at line 23 of file unitdouble.h.

    { return a < b; }

---

Member Data Documentation

uintc unitdouble::bucketsize

Configures the number of buckets.

Definition at line 17 of file unitdouble.h.

Referenced by index().

---

The documentation for this class was generated from the following file:

• bucket/unitdouble.h