fig05_10.cpp

这是C＋＋编程经典的书上实例的源代码。 （英文名是《C＋＋ how to program》第3版）

// Fig. 5.10: fig05_10.cpp
// Converting lowercase letters to uppercase letters
// using a non-constant pointer to non-constant data
#include <iostream>

using std::cout;
using std::endl;

#include <cctype>

void convertToUppercase( char * );

int main()
{
   char string[] = "characters and $32.98";

   cout << "The string before conversion is: " << string;
   convertToUppercase( string );
   cout << "\nThe string after conversion is:  " 
        << string << endl;
   return 0;
}

void convertToUppercase( char *sPtr )
{
   while ( *sPtr != '\0' ) {

      if ( islower( *sPtr ) )
         *sPtr = toupper( *sPtr );  // convert to uppercase

      ++sPtr;  // move sPtr to the next character
   }
}



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