Thread: What exactly is the purpose of single quotes? For example, the following array here:

actually can you explain everything about this piece?

Code:

const char baseDigits[10] =
         {'0', '1', '2', '3', '4',
          'A','B','C','D', 'E'} ;

SO I know the array contains 10 numbers and that they are the ones included in the bracket....what is const? What are the single quotes for????

const means that the array of chars should be constant, i.e. not changed. If you try to change anything in the array the compiler will give you an error/warning.
The single quotes means that it is a single char, and it's ascii value will be assigned to the array element.

These two statements mean the same thing, but if you are dealing with characters it's easier to deal with them as letters rather than their ASCII-value counterparts.

Code:

char c;
c = 'a';
c = 97;

Single quotes mean an ascii character as iceway points out... 'A' can be stored as a single byte.
Double quotes mean a null terminated string... "A" actually needs 2 bytes... one for the A one for the trailing 0.