C strupr() Function

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C strupr() function converts a given string into uppercase.

 

It is also no standard function that does not available in the standard library in C.

Syntax:

char *strupr(char *string);

Example:

#include <stdio.h>
#include <string.h>  

void main () {
    char str1[30] = "Hello";
	printf("It convert to UpperCase String: %s\n", strupr(str1));
}
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