Default Constructor compiler error.

[Sabiyur]

Hi All,
While compiling the dll, I am getting the below error.
"error C2512: 'basic_ostream<char,struct std::char_traits<char> >' : no
appropriate default constructor available"

The error is ocucrring on the line "ostream myfile1;"

Does any one know about this error? how to make it go away?. My
requirement is to write some do debug logging into a file. But I am
getting this error.

Please help me.

Thanks
Sabiyur Rahman A

 

[mlimber]

While compiling the dll, I am getting the below error.
"error C2512: 'basic_ostream<char,struct std::char_traits<char> >' : no
appropriate default constructor available"

The error is ocucrring on the line "ostream myfile1;"

Does any one know about this error? how to make it go away?. My
requirement is to write some do debug logging into a file. But I am
getting this error.

You can make it go away by using ostream correctly -- the class does
not have a default constructor (see
http://dinkumware.com/manuals/?manual=compleat&page=ostream.html#basic_ostream).
You probably want to use an object of type std:stringstream or
std:fstream (or similar) instead of std:stream to do your logging.

Cheers! --M

 

[Jim Langston]

Hi All,
While compiling the dll, I am getting the below error.
"error C2512: 'basic_ostream<char,struct std::char_traits<char> >' : no
appropriate default constructor available"

The error is ocucrring on the line "ostream myfile1;"

Does any one know about this error? how to make it go away?. My
requirement is to write some do debug logging into a file. But I am
getting this error.

Please help me.

Thanks
Sabiyur Rahman A

Because ostream requires (on minimum at least, not sure if more is needed)
the file name to write to.

std:stream myfile1("filename.ext");

There is no default constructor for ostream

 

[mlimber]

Because ostream requires (on minimum at least, not sure if more is needed)
the file name to write to.

std:stream myfile1("filename.ext");

No, ofstream takes a file name; ostream takes a pointer to a
basic_streambuf. See the documentation here:

http://dinkumware.com/manuals/?manual=compleat&page=ostream.html#basic_ostream

Cheers! --M