Sub-programs, functions, procedures and methods make use of variables. Variables close variableA specific location in RAM (main memory) that stores a value used by a program can be declared as: A ...

Global variables are divisive: an invaluable shortcut or a dangerous example of sloppy code? Let's talk about what they do, what they’re good for, and why you should be extra careful using them. A ...

When the macro processor executes a macro program statement that can create a macro variable (such as a %LET statement), the macro processor attempts to change the value of an existing macro variable ...