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学ぶ How to Create Function in C++? | Section
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C++ Functions

bookHow to Create Function in C++?

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There are many built-in functions, but sometimes you might need to write a custom one.

main.cpp

main.cpp

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// Function to add two numbers int add(int a, int b) { return a + b; }
Function Signature
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The function signature provides essential information about a function's interface, including its name, return type, and parameter list.

Return Type
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Specifies the type of data the function will return. For example, int indicates the function will return an integer value.

Function Name
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A unique identifier for the function, used to call it from other parts of the program.

Parameter List
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Defines the input values the function expects. For example, a function might expect a single integer parameter named n.

Function Body
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Contains the code that performs the desired operations, enclosed in curly braces {}.

Return Statement
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Specifies the value the function will return to the caller using the return keyword.

Thus, above, we described the structure of a function in C++: any function consists of a signature, a function body, and a return value.

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Which of the following best describes a function's main parts?

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すべて明確でしたか?

どのように改善できますか?

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