llvm dev - Aug 2009 - [LLVMdev] std::cout << *MyModule does not work anymore

On Aug 25, 2009, at 12:24 PM, Albert Graef wrote:
> Trunk (r80020):
>  raw_fd_ostream(const char *Filename, std::string &ErrorInfo,
>                 unsigned Flags = 0);
>
> It would be helpful to emulate the LLVM 2.5 variant of the constructor
> on both 2.6 and trunk, so that frontend developers don't have to code
> against three different versions of the constructor, if they don't  
> need
> the added functionality.
We do not guarantee API stability at all, so this is just the tip of  
the iceberg.  At one point we discussed having a Version.h that you  
could #include and then #ifdef based on the version number, I don't  
know what happened to it if anything.

It seems that it would be relatively easy to get autoconf to make a  
include/llvm/Config/Version.h file that did this.

-Chris

Chris Lattner wrote:
> We do not guarantee API stability at all, so this is just the tip of the
> iceberg.
I understand that. But in this specific case it would be very easy to
maintain, no?
> It seems that it would be relatively easy to get autoconf to make a
> include/llvm/Config/Version.h file that did this.
I already have the necessary autoconf magic to deal with this in my
frontend. I just hoped that I might get rid of it in this case. All
those #ifdef's don't make the code prettier. :)

Albert

-- 
Dr. Albert Gr"af
Dept. of Music-Informatics, University of Mainz, Germany
Email:  Dr.Graef at t-online.de, ag at muwiinfa.geschichte.uni-mainz.de
WWW:    http://www.musikinformatik.uni-mainz.de/ag

Albert Graef wrote:
> I understand that. But in this specific case it would be very easy to
> maintain, no?
FWIW, suggested patch attached. That makes the LLVM 2.5 style
raw_fd_ostream constructor work with the trunk (r80036). Note that this
just adds a second constructor, existing code will continue to work as
before. I'd be happy to prepare an analogous patch for the 2.6 release
branch, just let me know.

Albert

-- 
Dr. Albert Gr"af
Dept. of Music-Informatics, University of Mainz, Germany
Email:  Dr.Graef at t-online.de, ag at muwiinfa.geschichte.uni-mainz.de
WWW:    http://www.musikinformatik.uni-mainz.de/ag
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