From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Oliver Archner <oliver(dot)archner(at)bitoek(dot)uni-bayreuth(dot)de> |
Cc: | pgsql-interfaces(at)postgresql(dot)org |
Subject: | Re: Calling C++ function |
Date: | 2004-08-15 18:27:38 |
Message-ID: | 28455.1092594458@sss.pgh.pa.us |
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Lists: | pgsql-interfaces |
Oliver Archner <oliver(dot)archner(at)bitoek(dot)uni-bayreuth(dot)de> writes:
> Can anyone point me to example which calls a C++ function from a dynamic
> library ?
It's gonna be fairly painful, since the backend is a C program not a C++
program, and therefore it does not provide any of the infrastructure
that C++ code is likely to expect --- no exception stack, no global
constructors/destructors, no C++ library, etc. I am not sure how much
of this is practical to load after-the-fact in a dynamic library.
My inclination if you really need to use ImageMagick would be to shell
out to the IM executable via system() (or better popen(), if you have a
modern popen that supports 'r+' access).
regards, tom lane
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