Re: File IO library issue

From:
James Kanze <james.kanze@gmail.com>
Newsgroups:
comp.lang.c++
Date:
Mon, 4 May 2009 00:27:51 -0700 (PDT)
Message-ID:
<36641d0e-7b8e-40ee-b417-d78808eef59e@q2g2000vbr.googlegroups.com>
On May 4, 12:58 am, chiku <Bless2ash...@gmail.com> wrote:

I am working with file IO library and we are using google test
framework to test it .Being a beignner i am facing few issues.

My file open interface look like this

bool FileStream::Open(const string& fileName)
     {
      _stream->open(fileName.c_str());
      if (_stream->is_open())
      return true;
      else
      return false ;


Why not just:
    return _stream->is_open() ;
?

}

where _stream is of fstream * type .


Just a secondary remark: it's not a good idea to start names
with an underscore. Technically, it's allowed if the following
character is not a capital, and the name isn't at global
namespace scope, but practically, you'll still get conflicts
with names defined by the system.

Above code seems to be giving false always when i called like

_fileName = "OpenWithValidFileName";
bool result = _fileStream->Open(_fileName);

where _fileName is of string type .
Any idea or thoughts?


Could be a lot of things. Does the file exist, for example? Or
do you have access rights to the current directory? (I'm also
a bit sceptical about the use of fstream. In my experience, it
is almost always preferable to use either ifstream or ofstream.)

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James Kanze (GABI Software) email:james.kanze@gmail.com
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