esphome::ProgmemStringTable< Strs > Struct Template Reference

Compile-time string table that packs strings into a single blob with offset lookup. More...

#include <progmem.h>

Static Public Member Functions
static constexpr auto	make_blob ()
	Generate packed string blob at compile time.
static constexpr auto	make_offsets ()
	Generate offset table at compile time (uint8_t limits blob to 255 bytes)

Static Public Attributes
static constexpr size_t	COUNT = sizeof...(Strs)
static constexpr size_t	BLOB_SIZE = (0 + ... + (Strs.size() + 1))

Detailed Description

template<FixedString... Strs>
struct esphome::ProgmemStringTable< Strs >

Compile-time string table that packs strings into a single blob with offset lookup.

Use PROGMEM_STRING_TABLE macro to instantiate with proper flash placement on ESP8266.

Example: PROGMEM_STRING_TABLE(MyStrings, "foo", "bar", "baz"); ProgmemStr str = MyStrings::get_progmem_str(idx, MyStrings::LAST_INDEX); // For ArduinoJson const LogString *log_str = MyStrings::get_log_str(idx, MyStrings::LAST_INDEX); // For logging

Definition at line 62 of file progmem.h.

Member Function Documentation

make_blob()

template<FixedString... Strs>

static constexpr auto esphome::ProgmemStringTable< Strs >::make_blob ( )

inlinestaticconstexpr

Generate packed string blob at compile time.

Definition at line 67 of file progmem.h.

make_offsets()

template<FixedString... Strs>

static constexpr auto esphome::ProgmemStringTable< Strs >::make_offsets ( )

inlinestaticconstexpr

Generate offset table at compile time (uint8_t limits blob to 255 bytes)

Definition at line 79 of file progmem.h.

Field Documentation

BLOB_SIZE

template<FixedString... Strs>

size_t esphome::ProgmemStringTable< Strs >::BLOB_SIZE = (0 + ... + (Strs.size() + 1))

staticconstexpr

Definition at line 64 of file progmem.h.

COUNT

template<FixedString... Strs>

size_t esphome::ProgmemStringTable< Strs >::COUNT = sizeof...(Strs)

staticconstexpr

Definition at line 63 of file progmem.h.

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

• esphome/core/progmem.h