What are macro arguments?

What are macro arguments?

Macro Arguments (DEFINE-! ENDDEFINE command) The macro definition can include macro arguments, which can be assigned specific values in the macro call. There are two types of arguments: keyword and positional. Keyword arguments are assigned names in the macro definition; in the macro call, they are identified by name.

Can you overload macros?

#define FOO2(x,y) #define FOO3(x,y,z) But this doesn’t work because macros do not overload on number of arguments.

How do you write a macro argument?

To create a macro with arguments, put them in parentheses separated by commas after the macro name, e.g. then BadSquare(3+4) would give 3+4*3+4, which evaluates to 19, which is probably not what we intended.

Why is a macro called a macro?

Macros are used to make a sequence of computing instructions available to the programmer as a single program statement, making the programming task less tedious and less error-prone. (Thus, they are called “macros” because a “big” block of code can be expanded from a “small” sequence of characters.)

Can C++ macros be overloaded?

To get an overloaded macro, first we need a macro which selects between several implementations. Then a variadic macro which generically counts its arguments produces a selector. Plugging the argument count into a dispatcher produces an overloaded macro.

What are macros in Splunk?

In Splunk terms, macros are Knowledge Objects. The Splexicon defines a search macro as “A knowledge object … that contains a portion of a search or a search function”, and a Knowledge Object as “A user-defined entity that enriches the existing data in Splunk Enterprise.”

What is the function of macro preprocessor?

The C preprocessor is a macro preprocessor (allows you to define macros) that transforms your program before it is compiled. These transformations can be the inclusion of header file, macro expansions etc.