warning: 'typedef' was ignored in this declaration typedef struct Transition{ [...]

[dbartelmus]

In State.h, the following error since some Arduino IDE update:
Arduino/libraries/StateMachine/src/State.h:11:1: warning: 'typedef' was ignored in this declaration typedef struct Transition{ ^~~~~~~

I can read on Stack Overflow that:

It is a degenerate syntax that is allowed but provides no benefit. Most modern compilers can be provoked into emitting a
warning about it; by default, they may not. [...]
C Standard
In ISO/IEC 9899:1999 (that's the C standard), we find:
§6.7 Declarations
Syntax
declaration: [...]

Source: https://stackoverflow.com/a/6399998/5631432

I delete "typedef" before "struct Transition{" in State.h and there is no more warning about this.

Let me know what you think.

Btw. thank you for your library

[aaaidan]

FYI This was resolved in PR #3, which has been merged. Upgrading to v1.0.13b (or later) should resolve the warning.

I think this issue can be closed as it has been addressed.

Edit: The latest version published on platformio is v1.0.11, so this issue is outstanding until a more recent version is published. As a workaround, you can install v1.0.13b by using a direct link to github's tar of the tag.

For example, in your project's platformio.ini, replace: jrullan/StateMachine@^1.0.11 with https://github.com/jrullan/StateMachine/archive/refs/tags/v1.0.13b.tar.gz, Then run pio pkg install --force