randomgenerator Class Reference

Generate a random uinteger. More...

#include <random.h>

List of all members.

Public Member Functions
uintc	operator() () const
	Generate a random uinteger.
void	randomize_start ()
void	seed (uintc s=1)
	Initialize the state of the random number generator.
Static Public Member Functions
template<typename Q >
static boolc	domain (point3< Q > const &p, boolc zero=true, boolc one=true)
	Test 3D point in interval 0 to 1 optionally with endpoints.
template<typename Q >
static boolc	domain (point2< Q > const &p, boolc zero=true, boolc one=true)
	Test 2D point in interval 0 to 1 optionally with endpoints.
template<typename T >
static boolc	domain (T const &x, boolc zero=true, boolc one=true)
	Test interval 0 to 1 optionally with end points.

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Detailed Description

Generate a random uinteger.

The sample of random numbers generated is hundreds of times smaller than what is needed for robust applications. However it uses C functions so is convenient for small and not so accurate applications.

Definition at line 34 of file random.h.

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Member Function Documentation

template<typename T >

boolc randomgenerator::domain	(	T const &	x,
		boolc	zero = true,
		boolc	one = true
	)			[inline, static]

Test interval 0 to 1 optionally with end points.

Definition at line 267 of file random.h.

References assertreturnfalse, and assertreturnfalseN.

{
//cout << SHOW(x) << endl;
  if (zero==false)
    assertreturnfalseN( x == (T)0 );

  if (one==false)
    assertreturnfalseN( x == (T)1 );

  assertreturnfalseN( x < (T)0 );

  assertreturnfalse( x <= (T)1 ); 

  return true;
}

template<typename Q >

boolc randomgenerator::domain	(	point2< Q > const &	p,
		boolc	zero = true,
		boolc	one = true
	)			[inline, static]

Test 2D point in interval 0 to 1 optionally with endpoints.

Definition at line 285 of file random.h.

References domain(), point2< T >::x, and point2< T >::y.

{
  bool res=true;
  if ( domain(p.x,zero,one) == false )
    res=false;
  if ( domain(p.y,zero,one) == false )
    res=false;

  return res;
}

template<typename Q >

boolc randomgenerator::domain	(	point3< Q > const &	p,
		boolc	zero = true,
		boolc	one = true
	)			[inline, static]

Test 3D point in interval 0 to 1 optionally with endpoints.

Definition at line 297 of file random.h.

References point3< T >::x, point3< T >::y, and point3< T >::z.

Referenced by domain(), randomtest::domaintest(), vispointxml::handlecommand(), and randomtest::test05().

{
  bool res=true;
  res &= domain(p.x,zero,one);
  res &= domain(p.y,zero,one);
  res &= domain(p.z,zero,one);

  return res;
}

uintc randomgenerator::operator()

(

)

const [inline]

Generate a random uinteger.

Definition at line 39 of file random.h.

    { return rand(); }

void randomgenerator::randomize_start

(

)

[inline]

Definition at line 43 of file random.h.

    { srand( time(NULL) ); }

void randomgenerator::seed

(

uintc

s = 1

)

Initialize the state of the random number generator.

Definition at line 3 of file random.cpp.

Referenced by main().

{
  srand(s);
}

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

• mathlib/random.h
• mathlib/random.cpp