C Program to Convert String into Lowercase Using Library Function

Program 1 :

#include
#include
#include
void main()
{
char *string = "Pritesh Taral";
printf("String before to strlwr : %sn", string);

strlwr(string);

printf("String after strlwr : %sn", string);
getch();
}

Output :

String before to strlwr : Pritesh Taral
String after strlwr : pritesh taral

---

Program 2 :

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

printf("Enter String : ");
gets(string);

strlwr(string);

printf("String after strlwr : %sn", string);
getch();
}

Output :

Enter String : Pritesh Taral
String after strlwr : pritesh taral

Explain me ?

1. strlwr : Converts all Letters from given String into equivalent Lowercase Letters
2. strlwr functions is included in Header File : string.h