C declaration

C declaration

int (*test(char *(*)(void)) (int); declares a function named "test" which accepts a pointer to a function accepting no parameter and returning a char pointer, the function "test" returns a pointer to a function which accepts a integer parameter and returns a integer.
Note: a declaration declares either a variable(pointer) or function(pointer), if its name is followed by left parentheses, it is a function, otherwise it is a variable(pointer).