strupr() function in C ? With Example

strupr() function in C

The strupr(string) function returns string characters in uppercase. Let's see a simple example of strupr() function.

c
#include <stdio.h> 
#include <string.h> 
int main() { 
char str[] = "Hello World"; 
printf("Original string: %s\n", str);
// Using strupr() to convert to uppercase 
 strupr(str); 
printf("String in uppercase: %s\n", str);
return 0; 
}

As with strlwr(), keep in mind that using non-standard functions like strupr() may not be portable across different compilers.