Experimental Physics and
Industrial Control System

Hi John,

Beginning with Base 3.15.6, code can opt-out of the printf and stdout redefinitions.

#define epicsStdioStdPrintfEtc
#define epicsStdioStdStreams
#include <epicsStdio.h>

https://github.com/epics-base/epics-base/blob/5aca4c684cc87158ded4c4d4c3303b4c018e43fa/modules/libcom/src/osi/epicsStdio.h#L35-L54

On 9/20/23 04:51, Priller, John via Tech-talk wrote:

But as advertised, that's a kludge.  What I should *probably* do is replace all my printf()s with epicsStdoutPrintf()s, but that's a lot of code revision, so for now I'm going with my work-around on changing order of includes.

I tend to avoid including epicsStdio.h unless I really need to (iocsh functions),
or call epicsStdoutPrintf() explicitly.  I have had conflicts with other headers.
eg. those which use constructs like GCC "__attribute__((printf...".

References:

EPICS 7 bug with epicsStdioRedirect.h / epicsTime.h Priller, John via Tech-talk

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