I'm trying to chase down why, when I run these commands, my code hangs on my Mega 2560 and I'm wondering if it is because I'm using Strings instead of cstrings? I'm using Strings because I'm familiar with that due to a .net background and I'm reluctant to switch to cstrings due to unfamiliarity and…

[image] turbosupramk3: None of his examples involve an expandable char array His examples declare an array that is large enough for the longest text that will be received. A String would need slightly more memory for the same text, and if there is insufficient memory for the char array the S…

So with that advice in mind, I cannot get your enum suggestion to work in a function. When I try to set settings action = variable (as opposed to settings action = "variable value"), the first example will not compile. Do I have to cast the variable into a constant somehow? enum settings { monday,…

[image] turbosupramk3: I cannot get your enum suggestion to work in a function. Post the code that demonstrates the problem, and explain the problem. Copy and post the full text of any error messages that appear, using code tags.

[image] turbosupramk3: Having hard coded values fly in the face of everything I've been taught with .net .net programs live in a computational utopia where there is near infinite memory, and nearly infinite CPU power to manipulate it. Not so, embedded systems. Let's consider how an "expanda…

Here is the code and the error messages, the problem is that the code does not compile because the enum declaration will not accept a variable name. I've placed it inside of setup() for the example. I'm not able to use a variable name, which I'd like to use this inside of a function and need to be a…

[image] turbosupramk3: String var = "monday"; settings action = var; <-- does not work with a variable, I need this to be inside of a function that takes a String value to represent the day This make no sense. What is your thinking here?

Under the hood an enum is an integer. so you cannot push a String in an enum. You can set your action variable to monday (without the ""). You need to make an array of Strings that corresponds to the enum if you want to print the enum monday as "monday".

[image] build_1971: You need to make an array of Strings Yes. An array of small s strings works well too. enum state {ASLEEP = 0, WAKING, MOVING, EATING}; const char *stateTag[] = { "I am asleep.", "I am waking up.", "I am getting out of bed.", "I am breaking fast." }; state myStat…

Hi, Can this myState = MOVING; be done this way char *stateName = "MOVING"; myState = stateName; or String stateName = "MOVING"; myState = stateName; or something similar? It was suggested to do this in this thread to get rid of a long if/elseif ladder in a function, however if I can't pass a…

The way you'd like to do it is sensible, but C/C++ has no features that would allow you to code it directly in that manner. [image] turbosupramk3: have to have an if/elseif No. Well you could use endless massive if/else chains, but I mentioned strcmp(). It could be used in a for loop to loo…

Strings vs c strings and strange behavior

Projects Programming

jremington February 1, 2024, 8:55pm 37

This make no sense. What is your thinking here?

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Strings vs c strings and strange behavior

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