Is it possible to implement macro conditional inside a macro function in C?

Is it possible to implement macro conditional inside a macro function in C?

Is it possible to implement a macro conditional inside a macro function in C. Something like this: In other words, preprocessor decides which macro to use based on an argument value. I know that this example doesn’t work, but I want to know is it possible to make it work somehow?

How are macros used in a C program?

In C, the macro is used to define any constant value or any variable with its value in the entire program that will be replaced by this macro name, where macro contains the set of code that will be called when the macro name is used in the program. The macro uses the “#define” directive to define the macro in C programming language.

Is it possible to use conditional statements inside a pre processor directive?

In other words, preprocessor decides which macro to use based on an argument value. I know that this example doesn’t work, but I want to know is it possible to make it work somehow? You cannot use pre-processor conditionals inside a pre-processor directive.

What happens when a C program is compiled?

In C programming language, when the C program is compiled then the program is sent to the compiler which converts the C program into machine language and then the compilation is done and executes the C program. The C preprocessor is also known as a macro preprocessor.

Is the% IF-% THEN /% ELSE statement conditional?

In general, %IF-%THEN/%ELSE statement, which is part of the SAS macro language, conditionally generates text. However, the IF-THEN/ELSE statement, which is part of the SAS language, conditionally executes SAS statements during DATA step execution. The expression that is the condition for the %IF-%THEN/%ELSE statement can contain only operands

How to avoid semicolons in a macro statement?

Use a %DO group or a quoting function, such as %STR, to prevent semicolons in action from ending the %IF-%THEN statement. The following examples show two ways to conditionally generate text that contains semicolons: The macro language does not contain a subsetting %IF statement. Thus, you cannot use %IF without %THEN.