Which of the following is the proper syntax for declaring macros in C?
a) #define MACRO()
b) #macro MACRO
c) #define MACRO
d) macro_define MACRO
Answer:
c) #define MACRO
Explanation:
The correct syntax for declaring a macro in C is using the #define directive followed by the macro name, and optionally, its replacement text. For example, #define PI 3.14 defines a macro PI with a value of 3.14. Macros are useful for defining constants and function-like macros to simplify repetitive code.
Understanding how to declare and use macros is important for writing efficient and maintainable code in C.