A hashing function-object for vectors. More...

#include <stl-utils.h>

Collaboration diagram for VectorHasher< Int >:

Public Member Functions
size_t	operator() (const std::vector< Int > &x) const noexcept

	VectorHasher ()

Static Private Attributes
static const int	kPrime = 7853

Detailed Description

template<typename Int>
struct kaldi::VectorHasher< Int >

A hashing function-object for vectors.

Definition at line 216 of file stl-utils.h.

Constructor & Destructor Documentation

◆ VectorHasher()

VectorHasher ( )

inline

Definition at line 226 of file stl-utils.h.

References KALDI_ASSERT_IS_INTEGER_TYPE.

                  {  // Check we're instantiated with an integer type.
     KALDI_ASSERT_IS_INTEGER_TYPE(Int);
   }

Member Function Documentation

◆ operator()()

size_t operator() ( const std::vector< Int > & x ) const

inlinenoexcept

Definition at line 217 of file stl-utils.h.

References VectorHasher< Int >::kPrime.

                                                             {
     size_t ans = 0;
     typename std::vector<Int>::const_iterator iter = x.begin(), end = x.end();
     for (; iter != end; ++iter) {
       ans *= kPrime;
       ans += *iter;
     }
     return ans;
   }

Member Data Documentation

◆ kPrime

const int kPrime = 7853

staticprivate

Definition at line 230 of file stl-utils.h.

Referenced by VectorHasher< Int >::operator()(), and StringHasher::operator()().

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

util/stl-utils.h

Public Member Functions

Static Private Attributes