Thread: Problems with istream

When I compile some old source code downloaded from Internet, I sometimes encounter the problems with

#include <fstream.h>
#include <iostream.h>

The g++ compiler in cygwin claims the following errors:

In file included from /usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/backward/fstream.h:31,
from decode.cpp:5:
/usr/lib/gcc/i686-pc-cygwin/3.4.4/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 <iostream> instead of the deprecated header <iostream.h>. To disable this warning use -Wno-deprecated.

in a class like that:

Code:

class e
{
public:
	e(istream&f);
                .....
}

I changed the header files as:

#include <fstream>
#include <iostream>


But the g++ still says:

decode.cpp:37: error: expected `)' before '&' token
decode.cpp:55: error: ISO C++ forbids declaration of `istream' with no type

What can I do to fix this problem? Thanks

Sorry, the code is a little bit longer and the varibles are not well named because the author wants to make the code short.

Why is k an unsigned char? The error is saying that you can't call get() and pass an unsigned char.

I followed Daved and vart's suggestions to modify the get() function. Then it is ok.
This forum is really quickly-replied and informed. Thanks all replies.