I’ve decided to upgrade my C++ standard from the default C++17 to a newer C++20. [env:nodemcu] platform = espressif8266 board = nodemcuv2 framework = arduino build_unflags = -std=gnu++17 build_flags = -std=gnu++20 std::span wasn’t working before → now it is. Nice. I can assume v20 is wor…

[image] dvdnwk: Nice. I can assume v20 is working. When I do C:\Users\Max\.platformio\packages\toolchain-xtensa\bin\xtensa-lx106-elf-g++.exe -v --help I get -std=gnu++17 Conform to the ISO 2017 C++ standard with GNU extensions. -std=gnu++1y…

`std=gnu++20` is shown as `201709`? @ NodeMCU:ESP8266:Arduino

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maxgerhardt March 10, 2023, 2:36pm 3

Plus, I’m not aware of a ESP8266 XTensa toolchain newer than 10.3.0. The Arduino-ESP8266 core uses the toolchain from

which is of that version. The official ESP8266 RTOS toolchain is even more behind at 8.4.0.

https://docs.espressif.com/projects/esp8266-rtos-sdk/en/latest/get-started/windows-setup.html

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