Converting lowercase letters to uppercase letters using a pointer : char pointer « Data Types « C++ Tutorial

1. C++ Tutorial
2. Data Types
3. char pointer

#include <iostream>
using std::cout;
using std::endl;

#include <cctype>
using std::islower;
using std::toupper;

void f( char * );

int main()
{
   char phrase[] = "characters";

   f( phrase );
   cout << phrase << endl;
   return 0;
}


void f( char *sPtr )
{
   while ( *sPtr != '\0' )
   {   
      *sPtr = toupper( *sPtr ); 

      sPtr++; 
   }
}

CHARACTERS