• qaz
    link
    1
    edit-2
    1 year ago

    It’s on the company computer, but I have a backup from earlier today that seems to have the same code.

    bool load_metadata() {
        uint8_t marker_field = EEPROM.read(0);
        // Write to ROM if marker has not been set
        if (marker_field != MARKER) {
            metadata = {
                0,
            };
            EEPROM.put(1, metadata);
            EEPROM.update(0, MARKER);
        }
        else {
            EEPROM.get(1, metadata);
        }
    }
    

    I have to admit, my experience with C++ is rather limited, last Monday was the first time in my life that I used a C++ compiler. I had some issues getting it to work with Visual Studio, so I ended up using VS Code WSL with clang 😅.

    • @[email protected]
      link
      fedilink
      21 year ago

      Does this compile with -Wall -Werror? (might not be an option if your dependencies’ headers contain warnings)

      Looks like it may be embedded code for a SoC or similar. The only things I can think of is that the tool chain you’re using maybe non-standard… or you’re invoking the dreaded Undefined Behaviour somewhere :(

      • qaz
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        1
        edit-2
        1 year ago

        I didn’t use -Werror but no warning about it showed up either. The project uses a semi-custom toolchain for a microcontroller, but I’m not using it to compile this code. I have another file with an entrypoint which tests some classes to be used by the microcontroller. The EEPROM in the code example is actually a macro for a class I’ve written that emulates the EEPROM library by writing and reading to a file on disk.

        It’s a bit of a mess but this dual toolchain setup seemed easier than emulating the board and peripherals in it’s entirety. I might have to retry that though using Wokwi.