TensorRT 8.4.3
nvinfer1::IIdentityLayer Class Reference

A layer that represents the identity function. More...

#include <NvInfer.h>

Inheritance diagram for nvinfer1::IIdentityLayer:
nvinfer1::ILayer nvinfer1::INoCopy

Protected Member Functions

virtual ~IIdentityLayer () noexcept=default
 
- Protected Member Functions inherited from nvinfer1::ILayer
virtual ~ILayer () noexcept=default
 
- Protected Member Functions inherited from nvinfer1::INoCopy
 INoCopy ()=default
 
virtual ~INoCopy ()=default
 
 INoCopy (INoCopy const &other)=delete
 
INoCopyoperator= (INoCopy const &other)=delete
 
 INoCopy (INoCopy &&other)=delete
 
INoCopyoperator= (INoCopy &&other)=delete
 

Protected Attributes

apiv::VIdentityLayer * mImpl
 
- Protected Attributes inherited from nvinfer1::ILayer
apiv::VLayer * mLayer
 

Additional Inherited Members

- Public Member Functions inherited from nvinfer1::ILayer
LayerType getType () const noexcept
 Return the type of a layer. More...
 
void setName (char const *name) noexcept
 Set the name of a layer. More...
 
char const * getName () const noexcept
 Return the name of a layer. More...
 
int32_t getNbInputs () const noexcept
 Get the number of inputs of a layer. More...
 
ITensorgetInput (int32_t index) const noexcept
 Get the layer input corresponding to the given index. More...
 
int32_t getNbOutputs () const noexcept
 Get the number of outputs of a layer. More...
 
ITensorgetOutput (int32_t index) const noexcept
 Get the layer output corresponding to the given index. More...
 
void setInput (int32_t index, ITensor &tensor) noexcept
 Replace an input of this layer with a specific tensor. More...
 
void setPrecision (DataType dataType) noexcept
 Set the computational precision of this layer. More...
 
DataType getPrecision () const noexcept
 get the computational precision of this layer More...
 
bool precisionIsSet () const noexcept
 whether the computational precision has been set for this layer More...
 
void resetPrecision () noexcept
 reset the computational precision for this layer More...
 
void setOutputType (int32_t index, DataType dataType) noexcept
 Set the output type of this layer. More...
 
DataType getOutputType (int32_t index) const noexcept
 get the output type of this layer More...
 
bool outputTypeIsSet (int32_t index) const noexcept
 whether the output type has been set for this layer More...
 
void resetOutputType (int32_t index) noexcept
 reset the output type for this layer More...
 

Detailed Description

A layer that represents the identity function.

If the output type is explicitly specified via setOutputType, IIdentityLayer can be used to convert from one type to another. Other than conversions between the same type (kFLOAT -> kFLOAT for example), the only valid conversions are:

(kFLOAT | kHALF | kINT32 | kBOOL) -> (kFLOAT | kHALF | kINT32)

Conversion also happens implicitly, without calling setOutputType, if the output tensor is a network output.

Two types are compatible if they are identical, or are both in {kFLOAT, kHALF}. Implicit conversion between incompatible types, i.e. without using setOutputType, is recognized as incorrect as of TensorRT 8.4, but is retained for API compatibility within TensorRT 8.x releases. In a future major release the behavior will change to record an error if the network output tensor type is incompatible with the layer output type. E.g., implicit conversion from kFLOAT to kINT32 will not be allowed, and instead such a conversion will require calling setOutputType(DataType::kINT32).

Warning
Do not inherit from this class, as doing so will break forward-compatibility of the API and ABI.

Constructor & Destructor Documentation

◆ ~IIdentityLayer()

virtual nvinfer1::IIdentityLayer::~IIdentityLayer ( )
protectedvirtualdefaultnoexcept

Member Data Documentation

◆ mImpl

apiv::VIdentityLayer* nvinfer1::IIdentityLayer::mImpl
protected

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