All-caps nomenclature for C++ function naming

C All-caps nomenclature is a convention for naming functions in which all uppercase letters are used for function names, usually used for macro definitions and inline functions to avoid name confusion. Syntax: <FUNCTION_NAME>() {...}. For example: inline int ADD_NUMBERS(int a, int b) {}, this function calculates the sum of two numbers.

The all-caps nomenclature of C function naming

The all-caps nomenclature is a method of naming C functions, where Function names consist entirely of uppercase letters, for example:

GET_DATA()

This naming convention is often used for macro definitions and inline functions because it helps avoid confusion with other function or variable names.

Syntax

The syntax of an all-uppercase function name is as follows:

<FUNCTION_NAME>() {...}

where <FUNCTION_NAME> is the function name, and Should consist entirely of uppercase letters.

Practical Case

Let’s create an inline function using all-uppercase nomenclature that will calculate the sum of two numbers:

#include <iostream>

inline int ADD_NUMBERS(int a, int b)
{
    return a + b;
}

int main()
{
    int num1 = 10;
    int num2 = 20;

    int sum = ADD_NUMBERS(num1, num2);

    std::cout << "The sum of " << num1 << " and " << num2 << " is: " << sum << std::endl;

    return 0;
}

Output:

The sum of 10 and 20 is: 30

In this example, we define an inline function named ADD_NUMBERS that takes two integer parameters and returns their and. Function names consist entirely of uppercase letters, which helps distinguish them from other identifiers.

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