matrix_stack_is_empty

This function can be used to check whether the matrix stack is empty (returns true) or not (returns false).

Syntax:

matrix_stack_is_empty();

Returns:

Boolean

Example:

if (!matrix_stack_is_empty())
{
    matrix_stack_clear();
}

The above code checks the matrix stack to see if it is empty and if it is not it clears it.