Keyword sizeof
Description
Returns the size of a variable.
Notes
Size represents the number of bytes used by that variable.
Example
int numArray 100 = 0;
int sizeOfNumArray = 0;
# sizeOfNumArray is set to 400.
# sizeOfNumArray is of type int (4 bytes) and is an array of size of 100, so 400 bytes are used in all.
sizeof numArray sizeOfNumArray;