Thread: [Dev-C++] I'm new , help required.

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Hi people,
  My name is Abhijeet and I'm from Bombay,India.
  I'm kind of new to DevC++ and I was trying to write a simple C++ program 
and the following            warning came up during compilation.
  Any idea what this warning means.

This was the program I was trying to compile ( Please ignore the bad 
programming or flaws if any )

#include <iostream.h>

class string
{
private:
   char *str;
public:
   void getstr()
   {
    cout<<"Enter the string : ";
    cin>>str;
    }

    void putstr()
    {
     cout<<"Entered string was : "<<str;
    }
};

int main()
{
  string s1;

  s1.getstr();
  s1.putstr();

  return 0;
}

and this was the warning

Compiler: Default compiler
Executing  g++.exe...
g++.exe "D:\TCPP\OUTPUT\strtry.cpp" -o "D:\TCPP\OUTPUT\strtry.exe"   -ansi 
-traditional-cpp  -I"C:\Dev-Cpp\include\c++"  
-I"C:\Dev-Cpp\include\c++\mingw32"  -I"C:\Dev-Cpp\include\c++\backward"  
-I"C:\Dev-Cpp\include"   -L"C:\Dev-Cpp\lib"
In file included from C:/Dev-Cpp/include/c++/backward/iostream.h:31,
                 from D:/TCPP/OUTPUT/strtry.cpp:1:
C:/Dev-Cpp/include/c++/backward/backward_warning.h:32:2: warning: #warning 
This file includes at least one deprecated or antiquated header. Please 
consider using one of the 32 headers found in section 17.4.1.2 of the C++ 
standard. Examples include substituting the <X> header for the <X.h> header 
for C++ includes, or <sstream> instead of the deprecated header 
<strstream.h>. To disable this warning use -Wno-deprecated.

Execution terminated
Compilation successful

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Abhijeet S wrote:
> #include <iostream.h>

that header is only for c (not c++). use this instead for c++ code:
#include <iostream>

for c++, the standard header names are the same, minus the '.h' extension.

hth,
alvin

It's not for C either. C has no such thing as an "iostream.h". The .h 
versions of C++ standard headers are from the pre-standard days (and 
from before namespaces). The standard versions of those headers have no 
extensions, and in some cases have a slightly different name ("sstream" 
instead of "strstream.h" for example). There are several reasons for the 
header filename changes, one of which is to avoid confusion between the 
C standard header "string.h" and the C++ one, "string" (the former 
providing string manipulation functions, the latter providing the C++ 
std::string class).

Regards,

Paul

Alvin Thompson wrote:
> that header is only for c (not c++). use this instead for c++ code:
> #include <iostream>
> 
> for c++, the standard header names are the same, minus the '.h' extension.

Abhijeet S wrote:

> #include <iostream.h>

The standard headers don't have .h.

> class string
> {
> private:
>   char *str;
> public:
>   void getstr()
>   {
>    cout<<"Enter the string : ";

std::cout

>    cin>>str;

Two errors here.
1) Use std::cin.
2) str is a wild pointer; try alocating some memory first.

Daniel K. O.

This might be a winner in the category: "Shortest problem description"

/Per W

On Mon, 16 Aug 2004, Abhijeet S wrote:

>
>
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Thread: [Dev-C++] I'm new , help required.

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