How do you know the size of Structure Variables?

We may use the unary operator ‘sizeOf’ to tell us the size of a structure (or any variable). The expression:

SizeOf( struct x);

Will evaluate the number of bytes required to hold all the members of the structure x. If y is a simple structure variable of type struct x, then the expression

SizeOf(y);

would also give the same answer. However, if y is an array variable of type struct x,

then

sizeOf(y);

Would give the total number of bytes the array y requires.

By Computers Professor

Older Post Write about Global Variables

Newer Post Write about Structures within Structures?

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