Question

I’m temporarily using gcc 2.95.2, and instead of having a sstream header, it defines a (slightly different, and deprecated) strstream. I’m currently getting around this with

#if __GNUC__ < 3       // or whatever version number it changes #include <strstream> #else #include <sstream> #endif 

and then things like:

#if __GNUC__ < 3     strstream str;     str << 'Hello World'; #else     stringstream str('Hello World'); #endif 

but it’s getting really annoying. I just want to make sure that when I switch back to a more recent gcc (or some other compiler), I don’t have to rewrite these passages. Any thoughts?

Answer 1

Create mystream.h as

#ifndef mystream  #if __GNUC__ < 3       // or whatever version number it changes #include <strstream> #define mystream(x,y) strstream x; x << y; #else #include <sstream> #define mystream(x,y) sstream x(y); #endif  #endif 

Then use mystream.h header and mystream type instead.

If you really want to make it look like modern sstream, you can create a new class manually (with the help of newer std c++ library source code or manually creating a proxy class that uses strstream as the underlying way to work).