C
C
  • 请登录查看
字典 我要纠错

Functions

Functions

A function is a C language construct that associates a compound statement (the function body) with an identifier (the function name). Every C program begins execution from the main function, which either terminates, or invokes other, user-defined or library functions.

// function definition.
// defines a function with the name "sum" and with the body "{ return x+y; }"
int sum(int x, int y) 
{
    return x + y;
}

Functions may accept zero or more parameters, which are initialized from the arguments of a f