Type of Functions
When creating a function, the data type of the return value must always be specified. In the main
function, the return type is declared as int
, indicating that it will return an integer value upon completion. In most cases, the main
function returns 0
to signify that the program has successfully executed.
main.cpp
1234int main() { return 0; }
Note
Since the
main
function is reserved in C++, it will always return integer.
Custom functions can return any value, but it's essential to understand that the type of the return value must match the specified return type in the function definition.
custom_function.h
1234___ custom_function() { return ___; }
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Type of Functions
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When creating a function, the data type of the return value must always be specified. In the main
function, the return type is declared as int
, indicating that it will return an integer value upon completion. In most cases, the main
function returns 0
to signify that the program has successfully executed.
main.cpp
1234int main() { return 0; }
Note
Since the
main
function is reserved in C++, it will always return integer.
Custom functions can return any value, but it's essential to understand that the type of the return value must match the specified return type in the function definition.
custom_function.h
1234___ custom_function() { return ___; }
Thanks for your feedback!