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hash.h File Reference
#include "pxr/pxr.h"
#include "pxr/base/tf/tf.h"
#include "pxr/base/tf/api.h"
#include <cstring>
#include <string>
#include <type_traits>
+ Include dependency graph for hash.h:
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Go to the source code of this file.

Classes

struct  Tf_SizedUnsignedInt< Size >
 
struct  Tf_SizedUnsignedInt< 1 >
 
struct  Tf_SizedUnsignedInt< 2 >
 
struct  Tf_SizedUnsignedInt< 4 >
 
struct  Tf_SizedUnsignedInt< 8 >
 
struct  TfCStrHashWrapper
 
struct  Tf_HashState
 
class  TfHash
 
struct  TfHashCharPtr
 A hash function object that hashes the address of a char pointer. More...
 
struct  TfHashCString
 A hash function object that hashes null-terminated c-string content. More...
 
struct  TfEqualCString
 A function object that compares two c-strings for equality. More...
 

Functions

template<class HashState , class T >
PXR_NAMESPACE_OPEN_SCOPE
std::enable_if_t
< std::is_integral< T >::value
TfHashAppend (HashState &h, T integral)
 
template<class HashState , class Enum >
std::enable_if_t< std::is_enum
< Enum >::value
TfHashAppend (HashState &h, Enum e)
 
template<class HashState , class T >
std::enable_if_t
< std::is_floating_point< T >
::value
TfHashAppend (HashState &h, T fp)
 
template<class HashState >
void TfHashAppend (HashState &h, const std::string &s)
 
template<class HashState , class T >
void TfHashAppend (HashState &h, const T *ptr)
 
template<class HashState >
void TfHashAppend (HashState &h, char const *ptr)=delete
 
template<class HashState >
void TfHashAppend (HashState &h, char *ptr)=delete
 
TfCStrHashWrapper TfHashAsCStr (char const *cstr)
 
template<class HashState >
void TfHashAppend (HashState &h, TfCStrHashWrapper hcstr)
 
template<class HashState , class T >
auto Tf_HashImpl (HashState &h, T &&obj, long) -> decltype(hash_value(std::forward< T >(obj)), void())
 
template<class HashState , class T >
auto Tf_HashImpl (HashState &h, T &&obj, int) -> decltype(TfHashAppend(h, std::forward< T >(obj)), void())
 

Function Documentation

template<class HashState , class T >
auto Tf_HashImpl ( HashState &  h,
T &&  obj,
long   
) -> decltype(hash_value(std::forward<T>(obj)), void())
inline

Definition at line 155 of file hash.h.

template<class HashState , class T >
auto Tf_HashImpl ( HashState &  h,
T &&  obj,
int   
) -> decltype(TfHashAppend(h, std::forward<T>(obj)), void())
inline

Definition at line 163 of file hash.h.

template<class HashState , class T >
PXR_NAMESPACE_OPEN_SCOPE std::enable_if_t<std::is_integral<T>::value> TfHashAppend ( HashState &  h,
integral 
)

Definition at line 43 of file hash.h.

template<class HashState , class Enum >
std::enable_if_t<std::is_enum<Enum>::value> TfHashAppend ( HashState &  h,
Enum  e 
)

Definition at line 59 of file hash.h.

template<class HashState , class T >
std::enable_if_t<std::is_floating_point<T>::value> TfHashAppend ( HashState &  h,
fp 
)

Definition at line 67 of file hash.h.

template<class HashState >
void TfHashAppend ( HashState &  h,
const std::string s 
)
inline

Definition at line 81 of file hash.h.

template<class HashState , class T >
void TfHashAppend ( HashState &  h,
const T *  ptr 
)
inline

Definition at line 90 of file hash.h.

template<class HashState >
void TfHashAppend ( HashState &  h,
char const ptr 
)
inlinedelete
template<class HashState >
void TfHashAppend ( HashState &  h,
char *  ptr 
)
inlinedelete
template<class HashState >
void TfHashAppend ( HashState &  h,
TfCStrHashWrapper  hcstr 
)
inline

Definition at line 127 of file hash.h.

TfCStrHashWrapper TfHashAsCStr ( char const cstr)
inline

Indicate that a char pointer is intended to be hashed as a C-style null terminated string. Use this to wrap a char pointer in a HashState::Append() call when implementing a TfHashAppend overload.

This structure provides a lightweight view on the char pointer passed to its constructor. It does not copy the data or participate in its lifetime. The passed char pointer must remain valid as long as this struct is used.

Definition at line 121 of file hash.h.