PROG TO CHANGE UPPERCASE/LOWER CASE OF STRING

strlwr, strupr in c

Here we will change string case with and without strlwr, strupr functions.

strlwr in c
 #include<stdio.h>
#include<string.h>
int main()
{
char string[] = "Strlwr in C";
    printf("%s\n",strlwr(string));
    return 0;
}
strupr in c
 #include<stdio.h>
#include<string.h>
main()
{
char string[] = "strupr in c";
    printf("%s\n",strupr(string));
    return 0;
}