strlwr() function (to lower-case) in C.

 

01  #include<stdio.h>
02 #include<string.h>
03
04 int main()
05 {
06
07 char str[20] = "HELLO WORLD";
08 printf("Original string is: %sn", str);
09 strlwr(str);
10 printf("String after strlwr: %sn", str);
11
12 return 0;
13 }
 
 
OUTPUT :

Original string is: HELLO WORLD

String after strlwr: hello world

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