CODEWITHSUNDEEP
c++windowsfile-io
gardian06
gardian06

Reputation: 1546

using fileIO in windows C++

I am trying to use fileIO in my windows VC++2008 (this is what I have set up for everything I need to do) program, and I have done the following

#include <iostream>
#include <fstream>
#include <string>
....
ostream Output;

intelisense is working fine, and even gives me the methods for the object, but my compiler throws that it does not recognize ostream even though I know that it resides in the fstream header file that is included.

is there something wrong with my compiler, and how do I check?

additional info

I have done the following, and it now recognizes the stream, but I now get a different error

std::ofstream Output // instead of ostream Output
Output.open("Output/log.txt", ios::out); //so that I can open the file and specify output as ofstream can go both ways.

when I tried to do this as one line with just a constructor I got this issue"

1>c:...\engine\gsp420maincore\gsp420maincore\messagequeue.cpp(141) : error C2664: 'std::basic_ostream<_Elem,_Traits>::basic_ostream(std::basic_streambuf<_Elem,_Traits> *,bool)' : cannot convert parameter 1 from 'const char [15]' to 'std::basic_streambuf<_Elem,_Traits> *'
1>        with
1>        [
1>            _Elem=char,
1>            _Traits=std::char_traits<char>
1>        ]
1>        Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast

when I use the current method my compiler states that 

error C2653: 'ios' : is not a class or namespace name

Upvotes: 0

Views: 763

Answers (2)

user155407
user155407

Reputation:

You could use ofstream if you're trying to output to a file:

#include <fstream>

std::ofstream o("file.txt");
o << "Hello File!";
o.close();

The std:: is needed if you're not using the std namespace.

Upvotes: 2

Oleksi
Oleksi

Reputation: 13097

Have you tried std::ostream? You might not have included the namespace?

Upvotes: 1

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