関連ワード:  implicit declaration of function invalid in c99    implicit declaration of function strlcat is invalid in c99    implicit declaration of function itoa is invalid in c99    implicit declaration of function usleep is invalid in c99    implicit declaration of function atoi is invalid in c99    implicit declaration of function gets is invalid in c99    implicit declaration of function sleep is invalid in c99    implicit declaration of function assert is invalid in c99    implicit declaration of function 'printf' is invalid in c99    implicit declaration of function rand is invalid in c99  
結果 : implicit declaration of function invalid in c99