esphome::sensor::StatelessLambdaFilter Class Reference

Optimized lambda filter for stateless lambdas (no capture). More...

#include <filter.h>

Inheritance diagram for esphome::sensor::StatelessLambdaFilter:

Public Member Functions
	StatelessLambdaFilter (optional< float >(*lambda_filter)(float))
optional< float >	new_value (float value) override
Public Member Functions inherited from esphome::sensor::Filter
virtual void	initialize (Sensor *parent, Filter *next)
	Initialize this filter, please note this can be called more than once.
void	input (float value)
void	output (float value)

Protected Attributes
optional< float >(*	lambda_filter_ )(float)
Protected Attributes inherited from esphome::sensor::Filter
friend	Sensor
Filter *	next_ {nullptr}
Sensor *	parent_ {nullptr}

Detailed Description

Optimized lambda filter for stateless lambdas (no capture).

Uses function pointer instead of std::function to reduce memory overhead. Memory: 4 bytes (function pointer on 32-bit) vs 32 bytes (std::function).

Definition at line 305 of file filter.h.

Constructor & Destructor Documentation

StatelessLambdaFilter()

esphome::sensor::StatelessLambdaFilter::StatelessLambdaFilter ( optional< float >(* lambda_filter )(float) )

inlineexplicit

Definition at line 307 of file filter.h.

Member Function Documentation

new_value()

optional< float > esphome::sensor::StatelessLambdaFilter::new_value ( float value )

inlineoverridevirtual

Implements esphome::sensor::Filter.

Definition at line 309 of file filter.h.

Field Documentation

lambda_filter_

optional< float >(* esphome::sensor::StatelessLambdaFilter::lambda_filter_) (float)

protected

Definition at line 309 of file filter.h.

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

• esphome/components/sensor/filter.h