Hi Max,
Thanks for that rapid reply. Unfortunately, I did not experience success with those changes. I made a smaller test case and I got a few namespace errors indicating to me that it was still not using c+17
namespace “std” has no member “variant”
namespace “std” has no member “visit”
just a bit of the code… for that first namespace error:
#include <iostream>
#include <typeinfo>
#include <variant>
using AT = double;
using PT = unsigned long long;
using R = std::variant<AT, PT>;and my platformio.ini (in case I did not understand you correctly…
; PlatformIO Project Configuration File
;
; Build options: build flags, source filter
; Upload options: custom upload port, speed and extra flags
; Library options: dependencies, extra library storages
; Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html
[env:um_feathers3]
platform = espressif32
board = um_feathers3
upload_port = COM6
monitor_speed = 115200
build_unflags = -std=gnu++11
build_flags = -std=gnu++17
-fmax-errors=5
-I./src/
;-I./src/utils/
lib_ldf_mode = deep
lib_extra_dirs = ~/Documents/Arduino/libraries
framework = arduino
lib_deps =
# mikalhart/IridiumSBD@^2.0
# sparkfun/SparkFun Swarm Satellite Arduino Library@^1.1.8
# nvirodiy/SDI-12@^2.1.4