string upcase!

(string-upcase! str)

string-upcase! converts the original string to uppercase. This one replaces the original string too!

Parameter	Description
str	Input string

Example

Example 1: Convert a string to uppercase (in place)

> (define mystr "This is a test.")
> mystr
"This is a test."
> (string-upcase! mystr)
"THIS IS A TEST."
> mystr
"THIS IS A TEST."