Equivilent C++ code in Dev C++?

[Nobody/Anonymous]

Hi, I have a few questions. I am taking a Visual C++ class, and our instructor recommended that we download Dev C++ so that would could do the work out of our book at home. Well I tried doing a sample program that was in our book in Dev C++, and all I get is errors when I compile it. This exact same code comiles/executes correctly in Visual C++, but it doesn't work in Dev C++. I was wondering if someone could help me with figuring out the equivalent code. Here is the sample project:

//calculates and displays required number of single rolls of wallpaper

#include <iostream.h>
using namespace std;

int main()
{

    //declare variables
    float length = 0.0;
    float width = 0.0;
    float height = 0.0;
    float rollCoverage = 0.0;
    float perimeter = 0.0;
    float area = 0.0;
    float rolls = 0.0;
   
    //enter input items
    cout << "Enter room length: ";
    cin >> length;
    cout << "Enter room width: ";
    cin >> width;
    cout << "enter ceiling height: ";
    cin >> height;
    cout << "Enter single roll coverage: ";
    cin >> rollCoverage;
   
    //calculate perimeter, area and number of single rolls
    perimeter = (length + width) * 2;
    area = perimeter * height;
    rolls = area / rollCoverage;
   
    //display output item
    cout << "Single rolls: " << rolls << endl;
   
    return 0;
    }
    //end of main function

The errors I get are as follows:

*22 C:\Documents and Settings\Owner\Desktop\Untitled1.cpp:3
iostream.h: No such file or directory.

* C:\Documents and Settings\Owner\Desktop\Untitled1.cpp
[Warning] In function `int:

*19 C:\Documents and Settings\Owner\Desktop\Untitled1.cpp
`cout' undeclared

*19 C:\Documents and Settings\Owner\Desktop\Untitled1.cpp
(Each undeclared

*20 C:\Documents and Settings\Owner\Desktop\Untitled1.cpp
`cin' undeclared

*34 C:\Documents and Settings\Owner\Desktop\Untitled1.cpp
`endl' undeclared

So what do i need to do in order to get this Visual C++ code to work in Dev C++?

[Nobody/Anonymous]

The C++ used is the standard C++. DevC++ is an IDE and not another version of C++,  as VC++ is in microsoft. The VC++ is known for not being "standard", a lot of Gates only stuff in it.

You may need to understand  standard C++ better, a direct fix from VC++ to standard could and would be a time long task every project i would think.

[Nobody/Anonymous]

In this case,
(1) iostream.h is depricated you need to use just iostream
(2) You need to look into making some additions to your C++ include path, as iostream is in a lower level directory.  One suggestion is to have the following there:
C:\<dev path>\include
C:\<dev path>\include\cpp
C:\<dev path>\include\c++
C:\<dev path>\include\c++\backward
C:\<dev path>\include\c++\bits
C:\<dev path>\include\c++\mingw32\bits
C:\<dev path>\include\c++\ext
C:\<dev path>\include\c++\mingw32

Final note.  It is almost never helpful to say "this code works under compiler xyz", there are diffferences in compilers, thats reality.

Wayne

[Nobody/Anonymous]

By the way, your code is correct, Dev is just not correctly configured. Go to "Tools > Compiler Options > Directories > C++ Includes" and add the following paths
(where dev-path is where you installed dev-cpp)

------------------------------------------------------------
C:\<dev path>\include
C:\<dev path>\include\cpp
C:\<dev path>\include\c++
C:\<dev path>\include\c++\backward
C:\<dev path>\include\c++\bits
C:\<dev path>\include\c++\mingw32\bits
C:\<dev path>\include\c++\ext
C:\<dev path>\include\c++\mingw32
-------------------------------------------------------------
--nilson

[Nobody/Anonymous]

Actually, strictly speaking, the code is *NOT* correct nilson, as it includes iostream.h, not iostream, so it not compliant with the C++ standard.

Our fixes for the path agree though, because, well..., I stole it from one of your posts.

:-)

Wayne