Thread: Are these headers standard?

Hi guys. This is a program I have to write for a C++ class.

My problem: My teacher says it won't c/l on her computer. She says the #include statements for conio.h and cctype are throwing errors. So my question is this, are cctype and conio.h standard headers?

Any ideas? I can c/l it fine, so I can't really tell you what the error is.

Code:

/*
Module 3 Program - car.cpp
last edit: 1 February 2002, 1411 EST
*/

#include <iostream>  //for cin, cout
#include <cctype>    //for isalpha(), isspace(), and isdigit()
#include <string>    //for atoi()
#include <conio.h>   //for clrscr()
#include "apclass/apstring.cpp"  //for apstring objects

   bool plate_checks_out(char*);
   void plate_to_code(char*);
   using namespace std;
           
   int main () {          
      apstring make, model;
      char plate[8];
      cout << "Enter Make         - ";
      cin >> make;
      cout << "\nEnter Model        - ";
      cin >> model;
      cin.ignore();   //If only cleaning the gutters was this easy   
      cout << "\nEnter Plate Number - ";
      cin.getline(plate, 8);
      clrscr();
      while (!plate_checks_out(plate)) {   //GIGO += a_little_bit
         cout << "Hmm, something seems to be wrong with that plate number. "
            "\nRemember, the format is: Three letters followed by three numbers. "
            "\n\nNow exiting program, have a nice day.";
         exit(1);
      }
      cout << "Make    = " << make  << '\n';
      cout << "Model   = " << model << '\n';
      cout << plate << " = ";
      plate_to_code(plate);
      return 0;
   }


           
   bool plate_checks_out(char* plate) {
           
      if (isalpha((int) plate[0]) && isalpha((int) plate[1]) && 
         isalpha((int) plate[2]) && isspace((int) plate[3]) &&
         isdigit((int) plate[4]) && isdigit((int) plate[5]) && 
         isdigit((int) plate[6]) ){
         return 1;
      }
      return 0;
   }

           
   void plate_to_code(char* plate) {
           
      int numberPart = atoi((const char*)&plate[4]) + toupper((int)plate[0]) + toupper((int)plate[1]) + toupper((int)plate[2]);
      cout << char((numberPart % 26) + 65);
      cout << numberPart;
      return;
   }

I believe that conio.h is non standard, and the clrsrc function is different any everysystem, but it really isint necessary in your program so just cut it out.
You can use ctype.h instead of cctype

conio.h is compiler specific so it varies from borland to ms to dev etc, but i believe it is shipped with most major compilers.

and the correct header is ctype.h which i believe is a standard library

I thought the standard libs didn't have the .h ending?

djgpp finds cctype just fine

thanks for your help though.

If you use headers with out the .h then you are doing it in a c++ fashion. If that is the case then you have to specify what name space you are using (normally std). Either that or prefix an std:: before each function you use from that libary (i think thats the standerd way of doing it).