C: string length function
Added test driver for strlen function which comes from K&R C. test result: $ strlen1 The string: The power of C! The length of string is 15 – using strlen() The length of string is 15 – using strlen1()
Added test driver for strlen function which comes from K&R C. test result: $ strlen1 The string: The power of C! The length of string is 15 – using strlen() The length of string is 15 – using strlen1()