Code Block Delimiter
A code block delimiter breaks code up into different sections of statements; variables declared within these sections are scoped - that is, they are in memory and can be accessed - and can be accessed only in the section where they are declared or in sections that appear within that section (child sections). A code block begins with a left curly brace ("{") and ends with a right curly brace ("}").
Functions, loops, structs, and conditionals all make use of code block delimiters. Conditional statements and loops (do, while, and for) do not require a code block delimiter if their total number of statements (or logical lines) do not exceed one. It is also possible to use anonymous code blocks for variable scoping only.
{ // start of the main code block
{
// inside of an anonymous code block
int n = 13;
}
// the integer n is no longer scoped
int x = 0;
// a single line loop doesn't require code block delimiters
// but still may be used
while (x < 10)
x++;
// this for loop has multiple statements, so it requires
// code block delimiters
for (x = 10; x <= 30; x++)
{
PrintInteger(x);
if (x > 25)
PrintString("x is greater than 25.");
else
PrintString("x is less than or equal to 25.");
}
} // end of the main code block
author: Charles Feduke, editors: Lilac Soul, Mistress, additional contributors: Frank Succardi, Ken Cotterill
