[LLVMdev] STDIN/STDOUT/STDERR (original) (raw)
Joerg Sonnenberger joerg at britannica.bec.de
Mon Mar 24 17:10:43 PDT 2014
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On Mon, Mar 24, 2014 at 07:32:07PM -0400, William Moses wrote:
How would one be able to represent stdin/stdout/stderr in llvm (using the api) for use in functions such as fputs?
stdin / stdout / stderr are macros on many systems and expand either to separate pointers or members of a single global array. The only way that will work in general is to use stdio.h.
One could use the external function fdopen to generate the FILE* and store it in a global variable, but I would be willing to guess that there is a more efficient way.
fdopen will not give you another reference to the pre-defined streams, but a separate FILE object with its own buffer etc.
Joerg
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