Defect report #4nn

Document: N1673
Date: 2013-02-11

Defect Report #4nn

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Submitter: Douglas Walls
Submission Date: 2013-02-11
Source:WG14
Reference Document: N1673
Version: 1.0
Date:
Subject: Should gets_s discard next input line when (s == NULL) ?

Summary

gets_s Annex K.3.5.4.1p2 says:

"If there is a runtime-constraint violation, s[0] is set to the null
character, and characters are read and discarded from stdin until a
new-line character is read, or end-of-file or a read error occurs."

The runtime-constraint violation here can be caused by a null "s"
pointer. Should we discard the next input line even if (s == NULL) ?

The way it is written, it looks like the answer is yes. However it is
not clear to us that that was the intent. Note also that s[0] cannot be
set to the null character when s==NULL.

Suggested Technical Corrigendum

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