The program of upper case and lower case

#include<iostream.h>
vod main()
{
char name[10];
char*cptr;
cout<<"Enter the name on lower case:";
cin>>name;
cptr=name;
for(;*cptr!='\0';cptr++)
{
if(*cptr>='a' && *cptr<='z')
*cptr=*cptr-32;
}
cout<<"Upper case is:"<<name<<endl;
}

Output:
Enter the name in lower case:jackson
Upper case is:JACKSON