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Addressed ticket #40 (non-standard errno values).
[fw/pdclib]
/
functions
/
_PDCLIB
/
prepread.c
diff --git
a/functions/_PDCLIB/prepread.c
b/functions/_PDCLIB/prepread.c
index ef2f70ed72bcda6962745d0b1d053a7c0000e7bf..9111ff49b9eaf0a7309d932acd216aecc2e781a3 100644
(file)
--- a/
functions/_PDCLIB/prepread.c
+++ b/
functions/_PDCLIB/prepread.c
@@
-17,7
+17,11
@@
int _PDCLIB_prepread( struct _PDCLIB_file_t * stream )
( stream->status & ( _PDCLIB_FWRITE | _PDCLIB_FAPPEND | _PDCLIB_ERRORFLAG | _PDCLIB_WIDESTREAM | _PDCLIB_EOFFLAG ) ) ||
! ( stream->status & ( _PDCLIB_FREAD | _PDCLIB_FRW ) ) )
{
( stream->status & ( _PDCLIB_FWRITE | _PDCLIB_FAPPEND | _PDCLIB_ERRORFLAG | _PDCLIB_WIDESTREAM | _PDCLIB_EOFFLAG ) ) ||
! ( stream->status & ( _PDCLIB_FREAD | _PDCLIB_FRW ) ) )
{
- _PDCLIB_errno = _PDCLIB_EIO;
+ /* Function called on illegal (e.g. output) stream.
+ See comments on implementation-defined errno values in
+ <_PDCLIB_config.h>.
+ */
+ _PDCLIB_errno = _PDCLIB_ERROR;
stream->status |= _PDCLIB_ERRORFLAG;
return EOF;
}
stream->status |= _PDCLIB_ERRORFLAG;
return EOF;
}