code two functions, both which accept a C-string parameter and return information about the C-string.

bool AllLetters(char *text) //this function accepts one C-string parameter and returns true if all characters in the a text are letters.

void AllUpper(char* text) //this function accepts one C-string parameter containing all letters and setting all characters to upper case

Your main program will verify that these function work properly by:

* asking the user to enter some text without blanks

*print out the text

* while the text that the user entered does not contain only letters (use your function to check this)

Ask the user to enter some text without blanks

* print out the text

* update the text so that the first letter only is in upper case (use your function to update the text)

* print out the text