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From: | CBFalconer <cbfalconer AT yahoo DOT com> |
Organization: | Ched Research |
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Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: scanf: strange behavior? |
References: | <20040902144152 DOT GH6858 AT webhome DOT cz> <2pp00iFnf7nsU1 AT uni-berlin DOT de> <41374c9c$0$173$cc7c7865 AT news DOT luth DOT se> <20040902184005 DOT GA23943 AT webhome DOT cz> <41378A42 DOT 5040801 AT acm DOT org> <200409022144 DOT i82LiDLe005751 AT envy DOT delorie DOT com> <20040902221157 DOT GB7970 AT webhome DOT cz> <200409022230 DOT i82MUuqE006471 AT envy DOT delorie DOT com> <9ccfj0hufuh2nii5jfjqlqgbf3g7b34mo6 AT 4ax DOT com> |
Lines: | 36 |
Date: | Fri, 03 Sep 2004 05:03:28 GMT |
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NNTP-Posting-Date: | Fri, 03 Sep 2004 05:03:28 GMT |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
Brian Inglis wrote: > DJ Delorie <dj AT delorie DOT com> wrote: > ... snip ... > > "7.19.6.2#16 The fscanf function returns the value of the macro EOF if > an input failure occurs before any conversion. Otherwise, the function > returns the number of input items assigned, which can be fewer than > provided for, or even zero, in the event of an early matching > failure." > > >The appropriate test cases are thus, for "%d %d": > > IMHO according to info and standard, results should be: > > "" > input failure - terminator - returns EOF > > "x" > matching failure - returns 0 > > "5" > input failure - terminator - returns 1 > > "5 x" > matching failure - returns 1 > > "5 5" > success - returns 2 > > "5 5 x" > success - returns 2 - " " scanned and pushed back - "x" unscanned I agree with your interpretation. AFAICS DJGPP 2.03 complies. -- "A man who is right every time is not likely to do very much." -- Francis Crick, co-discover of DNA "There is nothing more amazing than stupidity in action." -- Thomas Matthews
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