[cfe-dev] Check If AST File is Valid

[Jonathan Turner]

I'm not sure if this is what you're looking for, but I see that ASTWriter::WriteAST (in lib/Serialization/ASTWriter.cpp) outputs a few characters as a file signature(which look like a magic number to me), which you can see at the top of the function definition.

Hope that helps,

Jonathan


On Jun 3, 2011, at 2:07 PM, svandyk wrote:

> I'm using AST files to make call graphs on a large project, and I'm having
> some trouble. I think it's because some of the files that I think are AST
> are, in fact, not.
> 
> Does Clang have any easy way to tell if a file is a valid AST file?
> 
> Thanks,
> Stephanie
> 
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