Hence, two different libraries cannot contain two internal functions with the same name, which would lead to an error. Global variables of a library, which are not being exported are thus no longer accessible and modifiable from outside of the library. As a result, an error source is eliminated. In these cases it is of no significance whether they are located on the left or on the right side of the equal sign. In the case of arrays, the number of variables has to be correct as well.
Functions have to appear in an assihgnement as well.
This is possible only on the right side of the equal sign. A suitable variable has to be listed on the left side of this equation. In cases of string functions, this is then a string variable. Procedures are written as procedure calls using the standard method. Of course, the number of parameters has to be here correct as well.