The return statement

The return statement

return will return a value from a function to its caller. The value returned is the result of an expression.

As an Example this will print 7 


        int func(void);

	main()
 	{
	   printf("%d \n", func());
        }

        int func(void)
        {
           return 7;
	}

What ever follows the return statement will be evaluated as an expression. So, to be consistant you could place brackets around the return value. 


        return(7);

Or you could evaluate a formula on the statement: 


	return (Count-1);

Finally, if the function returns a void the return statement is not required, but maybe needed to leave a function before the end of the function block. Here is an example. 


	void CheckDate(int)

	main()
	{
	  CheckDate(40)
        }

	void CheckDate(int Month)
	{
	  if (Month > 31)
	  {
	    return;
	  }

	  puts("Month is valid");
        }

See also:

The exit function.

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Martin Leslie