Convert String to Uppercase in C: strupr() function in C Programming Language
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Table of Content:
strupr() function converts a given string into uppercase. Syntax for strupr( ) function is given below.
Syntax
char *strupr(char *string);
Important Note
strupr() function is non standard function which may not available in standard library in C.
Program
In this program, string "atnyla want to convert in upper case" is converted into uppercase using strupr( ) function and result is displayed as ATNYLA WANT TO CONVERT IN UPPER CASE.
#include<stdio.h> #include<string.h> int main() { char str[ ] = "atnyla want to convert in upper case"; printf("%s\n",strupr(str)); return 0; }
Output
ATNYLA WANT TO CONVERT IN UPPER CASE Press any key to continue . . .