main Function ? C++ Tutorial:



Here?s some rules exclusive to main, rules which a typical function is not bound to.



* The return type of main must be int

* main may not be called from inside the program, only the system may call the main function.

* main may not be declared inline nor static



The C++ Standard specifies that a C++ program need not necessarily define a function main . It ?s exact wording is ?It is implementation-defined whether a program in a freestanding environment is required to define a main function.?.-main Function ? C++ Tutorial:



　　　Here?s some rules exclusive to main, rules which a typical function is not bound to.



　 * The return type of main must be int

　 * main may not be called from inside the program, only the system may call the main function.

　 * main may not be declared inline nor static



The C++ Standard specifies that a C++ program need not necessarily define a function main . It ?s exact wording is ?It is implementation-defined whether a program in a freestanding environment is required to define a main function.?.