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???
06/07/07 05:36
Modified:
  06/07/07 05:37
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 		 #140368 - still better than scanf()
Responding to: ???'s previous message
gets() is bad becuase it can over run the input butter. This is because it does not ask how big the buffer is. I would not use it either.

My preference is getc(). Read the bytes one at a time ( No Blocking). Dump it if the bytes do not arrive before the time out Verify they are OK, then convert.

This avoids:
Save This Code
1234123412341234      // 
123412341234123       // lost byte
12341234123412341     // Extra byte
!                     // Noise
123a1234123412341     // Invalid data
I would:
X1234123412341234x    // Add a packet Start and Stop Delimiter
X1234123412341234x00  // Tack on a checksum or CRC


RS-232 does not guarantee error free delivery of data.

List of 39 messages in thread
TopicAuthorDate
String to decimal numbers            01/01/70 00:00      
   Piece of cake            01/01/70 00:00      
      Answer is correct - just do it 4 times!            01/01/70 00:00      
      No, Andy -- Joe\\\'s answer is not correct            01/01/70 00:00      
         simpler????            01/01/70 00:00      
            Simpler            01/01/70 00:00      
               scanf, printf....            01/01/70 00:00      
               scanf()            01/01/70 00:00      
                  Warnings well taken.            01/01/70 00:00      
         My response shows how to do it            01/01/70 00:00      
            the 1-line solution            01/01/70 00:00      
               Now that we\'re being silly ...            01/01/70 00:00      
                  I'm tempted to give it a "+1 Good answer" :-)            01/01/70 00:00      
                  As Cryptic as it can get.. (for me)            01/01/70 00:00      
                     Don't try this at home!!!            01/01/70 00:00      
                        Maybe try at home but NOT with the client !            01/01/70 00:00      
                  all 4 numbers, printf-ed, all in one for            01/01/70 00:00      
                     One small correction            01/01/70 00:00      
                        The world would come to a voilent end.            01/01/70 00:00      
                           this was nothing...            01/01/70 00:00      
                              Jan loves C ??? World go KAABOOM!!            01/01/70 00:00      
                     Jan, you are a wild man!!!            01/01/70 00:00      
                        I am cool serious.            01/01/70 00:00      
                           I've been learning C too!            01/01/70 00:00      
                              K&R            01/01/70 00:00      
                                 K&R * 3            01/01/70 00:00      
                                    The separation of AWK and Perl duly noted            01/01/70 00:00      
                                    I only have the one...            01/01/70 00:00      
   How about...            01/01/70 00:00      
      weekend quiz?            01/01/70 00:00      
         Ok, so it might have been a bit cryptic            01/01/70 00:00      
   Uncanny Adverts            01/01/70 00:00      
      OT - Google magic            01/01/70 00:00      
         Missed concepts..            01/01/70 00:00      
            Be careful            01/01/70 00:00      
               gets() is differently bad            01/01/70 00:00      
                  still better than scanf()            01/01/70 00:00      
                     or, don't bother with the stdlib etc. at all            01/01/70 00:00      
                        for me, replace 'rarely' with 'never'            01/01/70 00:00      

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