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Halide::Internal::FunctionPtr Struct Reference

A possibly-weak pointer to a Halide function. More...

`#include <FunctionPtr.h>`

## Public Member Functions

FunctionGroup * | group () const
| Get a pointer to the group this Function belongs to.
FunctionContents * | get () const
| Get the opaque FunctionContents object this pointer refers to.
FunctionContents & | operator* () const
FunctionContents * | operator-> () const
void | weaken ()
| Convert from a strong reference to a weak reference.
void | strengthen ()
| Convert from a weak reference to a strong reference.
bool | defined () const
| Check if the reference is defined.
bool | same_as (const FunctionPtr &other) const
| Check if two FunctionPtrs refer to the same Function.
bool | operator< (const FunctionPtr &other) const
| Pointer comparison, for using FunctionPtrs as keys in maps and sets.

## Public Attributes

IntrusivePtr< FunctionGroup > | strong
| A strong and weak pointer to the group.
FunctionGroup * | weak = nullptr
int | idx = 0
| The index of the function within the group.

## Detailed Description

A possibly-weak pointer to a Halide function.

Take care to follow the rules mentioned above. Preserves weakness/strength on copy.

Note that Function objects are always strong pointers to Halide functions.

Definition at line 27 of file FunctionPtr.h.

## Member Function Documentation

## group()

FunctionGroup * Halide::Internal::FunctionPtr::group | ( |  | ) | const

inline

Get a pointer to the group this Function belongs to.

Definition at line 39 of file FunctionPtr.h.

References strong, and weak.

Referenced by same_as(), strengthen(), and weaken().

## get()

FunctionContents * Halide::Internal::FunctionPtr::get | ( |  | ) | const

Get the opaque FunctionContents object this pointer refers to.

Wrap it in a Function to do anything interesting with it.

Referenced by operator*(), operator->(), and operator<().

## operator*()

FunctionContents & Halide::Internal::FunctionPtr::operator* | ( |  | ) | const

inline

Definition at line 48 of file FunctionPtr.h.

References get().

## operator->()

FunctionContents * Halide::Internal::FunctionPtr::operator-> | ( |  | ) | const

inline

Definition at line 52 of file FunctionPtr.h.

References get().

## weaken()

void Halide::Internal::FunctionPtr::weaken | ( |  | ) |

inline

Convert from a strong reference to a weak reference.

Does nothing if the pointer is undefined, or if the reference is already weak.

Definition at line 60 of file FunctionPtr.h.

References group(), strong, and weak.

## strengthen()

void Halide::Internal::FunctionPtr::strengthen | ( |  | ) |

inline

Convert from a weak reference to a strong reference.

Does nothing if the pointer is undefined, or if the reference is already strong.

Definition at line 68 of file FunctionPtr.h.

References group(), strong, and weak.

## defined()

bool Halide::Internal::FunctionPtr::defined | ( |  | ) | const

inline

Check if the reference is defined.

Definition at line 74 of file FunctionPtr.h.

References strong, and weak.

Referenced by Halide::Internal::Function::Compare::operator()().

## same_as()

bool Halide::Internal::FunctionPtr::same_as | ( | const FunctionPtr & | other | ) | const

inline

Check if two FunctionPtrs refer to the same Function.

Definition at line 79 of file FunctionPtr.h.

References group(), and idx.

## operator<()

bool Halide::Internal::FunctionPtr::operator< | ( | const FunctionPtr & | other | ) | const

inline

Pointer comparison, for using FunctionPtrs as keys in maps and sets.

Definition at line 85 of file FunctionPtr.h.

References get().

## Member Data Documentation

## strong

IntrusivePtr<FunctionGroup> Halide::Internal::FunctionPtr::strong

A strong and weak pointer to the group.

Only one of these should be non-zero.

Definition at line 31 of file FunctionPtr.h.

Referenced by defined(), group(), strengthen(), and weaken().

## weak

FunctionGroup* Halide::Internal::FunctionPtr::weak = nullptr

Definition at line 32 of file FunctionPtr.h.

Referenced by Halide::SimdOpCheckTest::check_one(), defined(), group(), strengthen(), and weaken().

## idx

int Halide::Internal::FunctionPtr::idx = 0

The index of the function within the group.

Definition at line 36 of file FunctionPtr.h.

Referenced by same_as().

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

- src/FunctionPtr.h