I have written a code generator which takes an XML document and
generate a C++ file. The XML document contains text element which
contains C++ code. I would like to be able to locate error message
based on the start of the text element. I think the #line directive
Hmm, sorry, not going to work. #line is used to give the compiler a hint as
to how many lines of source code to expect, this way it can size its caches
and do memory allocations up front, thereby decreasing compile time.
On my current project, we have 583,250 lines of C++. With out a #inline, it
compiles in 12min 43 seconds, but if I insert a #line 600000 compile time
drops to 7min flat.
You should do some research on memory allocation, it is known in
professional circles to be one of the more "expensive" activities your code
can do. Also fragmentation can occur, but that is beyond the scope of this
email.
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