Call a function for characters in a chartable.
function calls function
for characters in chartable
No function call occurs for characters that have value
and character value is done with the operator
Be careful when you use string literals or pointers.
Instead of calling
for each character,
tries to optimize the number of function calls, i.e. it makes a single function call for a chunk of characters when those consecutive characters have the same value.
No matter how long the character chunk is,
is called with four arguments;
(both inclusive) defines the range of characters that have value
is the same as