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Article View: comp.sys.amiga.tech
Article #45

Re: strins()

#45
From: "Eric Edwards"
Date: Wed, 14 Jun 1989 23:32
49 lines
2656 bytes
Sorry about the duplicate in comp.sys.amiga. I hit "reply" and amiga-relay only
 sends to comp.sys.amiga.  Now back to our regulary scheduled posting...

  - - The original note follows - -

In Measage ID<256@maytag.waterloo.edu> giguere@aries5.uucp says:
>If you're trying to write small programs with as little library
>overhead as possible you should avoid any of the (f/s/v)printf routines
>if at all possible.  As anyone who's looked through the bowels of a C
>compiler knows, the printf routines are some of the largest routines
>around and non-trivial to code.  That's why the standard program
>
>     main()
>       {
>         printf( "hello, world\n" );
>       }
>
>is actually more of a test for the C compiler than you'd normally think.

Lattice uses a bultin function to get arround this problem in printf.
I quote from the Lattice manual, _Lattice C Compiler_ version 4.0

"     printf

When this function is called, the compiler examines the formatting string:

*  When it is a constant string with no substitutions, the compiler changes the
   printf call to a _write call.
*  When it is a constant string AND only contains %s, %d and p% formats a call
   is made to _tinyprintf "

Disclaimer:  All typos are assumed to be mine, not the manual's.

Further they say they may do similar tricks for scanf, sprintf and fprintf but
upon checking my 5.0 manual I don't thing they have done this to date.

>Eric Giguere                                  268 Phillip St #CL-46
>For the curious: it's French ("jee-gair")     Waterloo, Ontario  N2L 6G9

Bitnet:    C506634@umcvmb.bitnet                    __________________________
Internet:  C506634@umcvmb.missouri.edu             / \.--------.           /  \
"The Amiga just isn't reliable enough unless you   |  | Eric   |---------+    |
know a lot about the machine" -- Jerry Pournelle   |  `--------'         !    |
  ================================================||  .--------.         !    |
"I did notice that at my party people stood in     |  | Edwards|_________+    |
 line to play with the Amiga"-- Jerry Pournelle    | /`--------'          ^   |
                           BYTE, October '88       \__________________________/
\\\ Note Forwarded  on: 06/14/89 19:16:30 ///
\\\      To: AMIGATEC ///
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!UMCVMB.BITNET!C506634
From: C506634@UMCVMB.BITNET ("Eric Edwards")
Newsgroups: comp.sys.amiga.tech
Subject: Re: strins()
Message-ID: <8906150029.AA22430@jade.berkeley.edu>
Date: 14 Jun 89 23:32:06 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Lines: 49