WG15 Defect Report Ref: 9945-1-40
Topic: streams & file descriptors & impl defined

This is an approved interpretation of 9945-1:1990.


Last update: 1997-05-20

                                                                9945-1-90 #40
	Classification:  No change


	Topic:			streams & file descriptors & impl defined
	Relevant Sections:	8.2.3

Defect Report:
6. Interactions of Other File-Type C Functions (section 8.2.3)
specifies 'single file description can be accessed both through streams
and through file descriptors.'  Section (pathname)  'A pathname
that begins with two successive slashes may be interpreted in an
implementation-defined manner.'  Does this mean that the stream
functions can behave in an implementation-defined manner? If all the
S_IS* functions return false, are there any requirements on using the
referenced file?

(Paul Wanish IBM)

WG15 response for ISO/IEC 9945-1:1990 (IEEE Std 1003.1-1990)

The implementation-defined semantics allowed by the text quoted
from apply to the process of pathname resolution.
Functions that use objects of type FILE * do their pathname
resolution in an implementation-defined manner for pathnames
that begin with two slashes followed by non-slash characters. does not apply to behavior other than that required
for pathname resolution.

The behavior of file types that cannot be identified with the
S_IS* macros ( is beyond the scope of ISO/IEC 9945-1:1990

Rationale for Interpretation: