看标准看了个开头， 有个疑问

zylthinking

If the return type of the main function is a type compatible with int, a return from the initial call to the main function is equivalent to calling the exit function with the value returned by the main function as its argument;10) reaching the } that terminates the main function returns a value of 0. If the return type is not compatible with int, the termination status returned to the host environment is unspecified.

说的是 main 函数如果 return, 则 等同于 return 0;
那么， 如果下文我还没看到的部分没有讲其他函数也是这个行为， 那么按照所谓科学精神， 是不是其他函数就不允许类似行为？ 至少是个 undefined behavior?

bruceteen

俺洋文差，一生中就高考那一次考到了个正好及格，所以有错误轻包含

reaching the } that terminates the main function returns a value of 0
我觉得是说，在}之前相当于有个return 0;即便没写

AD8018

http://stackoverflow.com/questio ... ent-return-value-12