```// Copyright (C) 2012  Davis E. King (davis@dlib.net)
#undef DLIB_RANDOM_HAsHING_ABSTRACT_Hh_
#ifdef DLIB_RANDOM_HAsHING_ABSTRACT_Hh_

#include "random_hashing_abstract.h"
#include "murmur_hash3.h"

namespace dlib
{

// ----------------------------------------------------------------------------------------

double uniform_random_hash (
const uint64& k1,
const uint64& k2,
const uint64& k3
);
/*!
ensures
- This function uses hashing to generate uniform random values in the range [0,1).
- To define this function precisely, assume we have an arbitrary sequence of
input triplets.  Then calling uniform_random_hash() on each of them should
result in a sequence of double values that look like numbers sampled
independently and uniformly at random from the interval [0,1).  This is true
even if there is some simple pattern in the inputs.  For example, (0,0,0),
(1,0,0), (2,0,0), (3,0,0), etc.
- This function is deterministic.  That is, the same output is always returned
when given the same input.
!*/

// ----------------------------------------------------------------------------------------

double gaussian_random_hash (
const uint64& k1,
const uint64& k2,
const uint64& k3
);
/*!
ensures
- This function uses hashing to generate Gaussian distributed random values
with mean 0 and variance 1.
- To define this function precisely, assume we have an arbitrary sequence of
input triplets.  Then calling gaussian_random_hash() on each of them should
result in a sequence of double values that look like numbers sampled
independently from a standard normal distribution.  This is true even if
there is some simple pattern in the inputs.  For example, (0,0,0), (1,0,0),
(2,0,0), (3,0,0), etc.
- This function is deterministic.  That is, the same output is always returned
when given the same input.
!*/

// ----------------------------------------------------------------------------------------

}

#endif // DLIB_RANDOM_HAsHING_ABSTRACT_Hh_

```