Error with Lesson 9 of the tutorial

I was going through Lesson 9 of the tutorial here when it wouldn't compile. I thought I may have typed it in wrong, so I cut and pasted it and tried again. No dice.

Here is the error I'm receiving:

[sugapablo@localhost c++]$ g++ -o string2copy string2copy.cc
string2copy.cc: In function `int main()':
string2copy.cc:19: `strcmpi' undeclared (first use this function)
string2copy.cc:19: (Each undeclared identifier is reported only once for each
function it appears in.)
string2copy.cc:37: `strupr' undeclared (first use this function)
string2copy.cc:43: `strlwr' undeclared (first use this function)
[sugapablo@localhost c++]$

I'm really new at C++, but it I would guess perhaps it isn't including string.h? (I'm using the g++ compiler on Mandrake 8.2)

Code:

#include <iostream.h> //For cout

#include <string.h> //For many of the string functions

int main()

{

  char name[50];            //Declare variables

  char lastname[50];        //This could have been declared on the last line...

  cout<<"Please enter your name: ";   //Tell the user what to do

  cin.getline(name, 50, '\n');       //Use gets to input strings with spaces or

//just to get strings after the user presses enter

  if(!strcmpi("Alexander", name))  //The ! means not, strcmpi returns 0 for

  {                                //equal strings

    cout<<"That's my name too."<<endl; //Tell the user if its my name

  }

  else                              //else is used to keep it from always

  {                     //outputting this line

     cout<<"That's not my name.";   

  }

   cout<<"What is your name in uppercase..."<<endl;

  strupr(name);                   //strupr converts the string to uppercase

  cout<<name<<endl;

  cout<<"And, your name in lowercase..."<<endl;

  strlwr(name);                    //strlwr converts the string to lowercase

  cout<<name<<endl;

  cout<<"Your name is "<<strlen(name)<<" letters long"<<endl;  //strlen returns

//the length of the string

  cout<<"Enter your last name:";

  cin.getline(lastname, 50, '\n'); //lastname is also a string

  strcat(name, " ");            //We want to space the two names apart

  strcat(name, lastname);      //Now we put them together, we a space in

//the middle

  cout<<"Your full name is "<<name; //Outputting it all...

  return 0;

}

string2copy.cc:19: `strcmpi' undeclared (first use this function)
string2copy.cc:37: `strupr' undeclared (first use this function)
string2copy.cc:43: `strlwr' undeclared (first use this function)

None of these are standard functions, and I'd guess your compiler doesn't support them. I'd suggest either looking in your compilers documentation to see if it has functions that do the same thing, but are called different names (for example stricmp() maybe available). Failing that, just write your own versions, which will be good practice for you.

Write my own versions? How would I do that? Anything on this site (or another) to show me how?

You might also have this function


>>Anything on this site (or another) to show me how?
Yes, the FAQ is a good place to start

Yes, I found strcasecmp while vi'ing string.h.

Thanks