Program to Convert String into Uppercase Using Library Function

Program 1 :

#include
#include
#include
void main()
{
char *string = "Pritesh Taral";

printf("String before to strupr : %sn", string);
strupr(string);
printf("String after strupr : %sn", string);

getch();
}

Output :

String before to strupr : Pritesh Taral
String after strupr : PRITESH TARAL

---

Program 2 :

#include
#include
#include
void main()
{
char string[100];

printf("Enter String : ");
gets(string);
strupr(string);
printf("String after strupr : %sn", string);

getch();
}

Output :

Enter String : Pritesh Taral
String after strupr : PRITESH TARAL

Explain me ?

1. strupr : Converts all Letters from given String into equivalent Uppercase Letters
2. Uppercase Letters Remains as It is .
3. Digits and Spaces also remains same , only lowercase letter gets modified.
4. strlwr functions is included in Header File : string.h