Invalid types 'char[int]' for array subscript

Projects Programming
1

I am trying to set all segments of a char array according to the letters of a string.
My code is:

/*

*/
String str ;
int strLenght;

void setup() {

}

void loop() {
   str = "A String";
   strLenght = str.length();
   char charectersInstr = new char[strLenght];
  for (int i =  0; i <= strLenght; i++){
    charectersInstr[i]=str.charAt(i);
  }
  }

I get the error:

invalid types 'char[int]' for array subscript```
2

Please post a small but complete sketch that illustrates the problem

3

Hint: new returns a pointer

4

why not simply

char [LEDLightLenght];
5

I get the following error:
error: expected primary-expression before 'char'

6

We can't see your code.

7

I am trying to set all segments of a char array according to the letters of a string.
My code is:

/*

*/
String str ;
int strLenght;

void setup() {

}

void loop() {
   str = "A String";
   strLenght = str.length();
   char charectersInstr = new char[strLenght];
  for (int i =  0; i <= strLenght; i++){
    charectersInstr[i]=str.charAt(i);
  }
  }

I get the error:

invalid types 'char[int]' for array subscript```
8

Try:

  char charectersInstr[strLenght];
9

charectersInstr is a single character; you will need a pointer to a character:

char *charectersInstr = new char[strLenght];

Dynamic memory allocation has to be done with care (and probably not at all). You will need to free/delete the memory before you leave loop(). Your current (attempted) code will run out of memory.

The below by @wildbill will be a lot safer.

10

@nousernameavailable

Other post/duplicate merged with this one
Please do NOT cross post / duplicate as it wastes peoples time and efforts to have more than one post for a single topic.

Continued cross posting could result in a time out from the forum.

Could you also take a few moments to Learn How To Use The Forum.

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It will help you get the best out of the forum in the future.

11

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