strupr -- Convert Lowercase to Uppercase

Format

<string.h>
char *strupr(char *string);

Language Level: Extension
strupr converts any lowercase letters in string to uppercase. Other characters are not affected.

Return Value
strupr returns a pointer to the converted string. There is no error return.

Example
This example makes a copy in all-uppercase of the string DosWrite for OS/2, and "Win32" for Windows, and then prints the copy.

#include <string.h>
#include <stdio.h>
int main(void)
{
   char *string = "Hello World!";
   char *copy;
   copy = strupr(strdup(string));
   printf("This is a copy of the string with all letters capitalized: %s\n",
          copy);
   return 0;
   /**************************************************************************
      The output should be:
      This is a copy of the string with all letters capitalized: HELLO WORLD!
   **************************************************************************/
}



strlwr -- Convert Uppercase to Lowercase
_toascii - _tolower - _toupper -- Convert Character
tolower() - toupper() -- Convert Character Case
towlower - towupper -- Convert Wide Character Case
<string.h>