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comp.lang.c FAQ list
<font color=blue>&middot;</font>
<a href="../../resources/ansiavail.html"><!-- qtag -->Question 18.13c</a>
</h1>
<p>
<font face=Helvetica size=8 color=blue><b>Q:</b></font>
Where can I get a copy of the ANSI/ISO C Standard?
</p><p><hr>
<p>
<font face=Helvetica size=8 color=blue><b>A:</b></font>
See question <a href="faqcat7d4b.html?sec=ansi#avail">11.2</a>.
<hr><hr><hr>
<a name="expreval">
<h1>
comp.lang.c FAQ list
<font color=blue>&middot;</font>
<a href="../../resources/expreval.html"><!-- qtag -->Question 18.14</a>
</h1>
<p>
<font face=Helvetica size=8 color=blue><b>Q:</b></font>
I need code to parse and evaluate
expressions.
</p><p><hr>
<p>
<font face=Helvetica size=8 color=blue><b>A:</b></font>
Two
available packages are





``defunc,''
posted to comp.sources.misc in December, 1993 (V41 i32,33),


to alt.sources in January, 1994,



and
available from
sunsite.unc.edu
in
pub/packages/development/libraries/defunc-1.3.tar.Z,
and


``parse,''
at lamont.ldgo.columbia.edu.
Other options include







the S-Lang interpreter,
available
via anonymous ftp from amy.tch.harvard.edu in pub/slang,
and the shareware Cmm







(``C-minus-minus'' or
``C minus the hard stuff'').
See also questions <a href="faqcatccbd.html?sec=resources#sources">18.16</a>
and <a href="faqcat38c2.html?sec=misc#symtab">20.6</a>.
</p><p>There is also some parsing/evaluation code in



<I>Software Solutions in C</I>
(chapter 12, pp. 235-55).
<hr><hr><hr>
<a name="grammars">
<h1>
comp.lang.c FAQ list
<font color=blue>&middot;</font>
<a href="../../resources/grammars.html"><!-- qtag -->Question 18.15</a>
</h1>
<p>
<font face=Helvetica size=8 color=blue><b>Q:</b></font>
Where can I get a BNF or
YACC grammar for C?
</p><p><hr>
<p>
<font face=Helvetica size=8 color=blue><b>A:</b></font>
The definitive grammar is of course the one in the
ANSI standard;
see question <a href="faqcat7d4b.html?sec=ansi#avail">11.2</a>.
Another grammar


by Jim Roskind
is
available
at ftp.eskimo.com
in <a href="ftp://ftp.eskimo.com/u/s/scs/roskind_grammar.Z"><TT>u/s/scs/roskind_grammar.Z</TT></a>.
A fleshed-out, working instance of the ANSI C90 grammar
(due to Jeff Lee)
is
on ftp.uu.net (see question
<a href="faqcatccbd.html?sec=resources#sources">18.16</a>)
in usenet/net.sources/ansi.c.grammar.Z
(including a companion lexer).
<a href="../../resources/fn87.html" rel=subdocument>[footnote]</a>
The
FSF's GNU C compiler contains a grammar, as does
the appendix to K&amp;R2.
</p><p>The comp.compilers archives
contain more information about grammars;
see question <a href="faqcatccbd.html?sec=resources#compilers">18.3</a>.
</p>



<p>References:

K&amp;R1 Sec. A18 pp. 214-219
<br>
K&amp;R2 Sec. A13 pp. 234-239
<br>
ISO Sec. B.2
<br>
H&amp;S pp. 423-435 Appendix B
<hr><hr><hr>
<a name="cctestsuite">
<h1>
comp.lang.c FAQ list
<font color=blue>&middot;</font>
<a href="../../resources/cctestsuite.html"><!-- qtag -->Question 18.15b</a>
</h1>
<p>
<font face=Helvetica size=8 color=blue><b>Q:</b></font>
Does anyone have a C compiler test suite I can use?
</p><p><hr>
<p>
<font face=Helvetica size=8 color=blue><b>A:</b></font>
Plum Hall
(formerly in Cardiff, NJ; now in Hawaii)
sells one;
other packages are
Ronald Guilmette's
RoadTest(tm) Compiler Test Suites
(ftp to netcom.com, pub/rfg/roadtest/announce.txt for information)
and


Nullstone's Automated Compiler Performance Analysis Tool
(see <a href="http://www.nullstone.com/"><TT>http://www.nullstone.com</TT></a>).



The FSF's GNU C (gcc)

distribution includes a c-torture-test
which checks a number of common problems with compilers.
Kahan's paranoia test,

found in



netlib/paranoia on netlib.att.com,
strenuously tests a C implementation's floating point capabilities.
<hr><hr><hr>
<a name="miscsrcs">
<h1>
comp.lang.c FAQ list
<font color=blue>&middot;</font>
<a href="../../resources/miscsrcs.html"><!-- qtag -->Question 18.15c</a>
</h1>
<p>
<font face=Helvetica size=8 color=blue><b>Q:</b></font>
Where are some collections of useful code fragments and examples?
</p><p><hr>
<p>
<font face=Helvetica size=8 color=blue><b>A:</b></font>
Bob Stout's
popular
``SNIPPETS'' collection
is available
from <a href="ftp://ftp.brokersys.com/"><TT>ftp.brokersys.com</TT></a>
in directory <a href="ftp://ftp.brokersys.com/pub/snippets/"><TT>pub/snippets</TT></a>

or on the web at
<a href="http://www.brokersys.com/snippets/"><TT>http://www.brokersys.com/snippets/</TT></a>.
</p><p>Lars Wirzenius's ``publib'' library
is available
from <a href="ftp://ftp.funet.fi/"><TT>ftp.funet.fi</TT></a>
in directory <a href="ftp://ftp.funet.fi/pub/languages/C/Publib/"><TT>pub/languages/C/Publib/</TT></a>.

</p><p>See also
questions <a href="faqcat973e.html?sec=fp#mathsrc">14.12</a>, <a href="faqcatccbd.html?sec=resources#tutorials">18.9</a>, <a href="faqcatccbd.html?sec=resources#tutsources">18.9b</a>, <a href="faqcatccbd.html?sec=resources#stdlibsrc">18.13</a>, and <a href="faqcatccbd.html?sec=resources#sources">18.16</a>.
<hr><hr><hr>
<a name="mplib">
<h1>
comp.lang.c FAQ list
<font color=blue>&middot;</font>
<a href="../../resources/mplib.html"><!-- qtag -->Question 18.15d</a>
</h1>
<p>
<font face=Helvetica size=8 color=blue><b>Q:</b></font>
I need code for performing multiple precision arithmetic.
</p><p><hr>
<p>
<font face=Helvetica size=8 color=blue><b>A:</b></font>
Some popular packages are



the ``quad'' functions within the
BSD Unix libc sources
(ftp.uu.net, /systems/unix/bsd-sources/.../src/lib/libc/quad/*),



the GNU MP library ``libmp'',



the MIRACL package
(see <a href="http://indigo.ie/~mscott/"><TT>http://indigo.ie/~mscott/</TT></a>),
the ``calc'' program
by David Bell and Landon Curt Noll,

and the old Unix libmp.a.
See also questions
<a href="faqcat973e.html?sec=fp#mathsrc">14.12</a>
and
<a href="faqcatccbd.html?sec=resources#sources">18.16</a>.
</p>

<p>References:

Schumacher, ed.,
<I>Software Solutions in C</I> Sec. 17 pp. 343-454
<hr><hr><hr>
<a name="sources">
<h1>
comp.lang.c FAQ list
<font color=blue>&middot;</font>
<a href="../../resources/sources.html"><!-- qtag -->Question 18.16</a>
</h1>
<p>
<font face=Helvetica size=8 color=blue><b>Q:</b></font>
Where
and how
can I get copies of all these freely distributable programs?
</p><p><hr>
<p>
<font face=Helvetica size=8 color=blue><b>A:</b></font>
As the number of available programs,
the number of publicly accessible archive sites,
and the number of people trying to access them
all grow,
this question becomes both easier and more difficult to answer.
</p><p>There are a number of
large,
public-spirited
archive sites
out there,
such as
<a href="ftp://ftp.uu.net/"><TT>ftp.uu.net</TT></a>,

<a href="ftp://archive.umich.edu/"><TT>archive.umich.edu</TT></a>,
<a href="ftp://oak.oakland.edu/"><TT>oak.oakland.edu</TT></a>,
<a href="ftp://sumex-aim.stanford.edu/"><TT>sumex-aim.stanford.edu</TT></a>,
and
<a href="ftp://wuarchive.wustl.edu/"><TT>wuarchive.wustl.edu</TT></a>,

which have huge amounts of software
and other information
all freely
available.
For the FSF's GNU project,
the central distribution site is
<a href="ftp://prep.ai.mit.edu/"><TT>prep.ai.mit.edu</TT></a>.
These well-known sites tend to be extremely busy and hard to reach,
but there are also numerous ``mirror'' sites
which try to spread the load around.
</p><p>On the connected Internet,
the traditional way to retrieve files from an archive site
is with anonymous ftp.
For those without ftp access,
there are also several ftp-by-mail servers in operation.

More and more,
the world-wide web (WWW)
is being used to
announce, index,
and even transfer
large data files.
There are probably yet newer access methods, too.
</p><p>Those are
some of
the easy parts of the question to answer.
The hard part is in the details--this
document cannot
begin to
track or
list all of the
available archive sites
or
all of the various ways of accessing them.
If you have access to the net at all,
you probably have access to more up-to-date information
about
active sites and useful access methods
than this
FAQ list
does.
</p><p>The other easy-and-hard aspect of the question,
of course,
is simply <em>finding</em>
which site
has what you're looking for.
There is a tremendous amount of work going on in this area,
and there are probably new indexing services springing up every day.
One of the first was ``archie'',
and of course there are a number of
high-profile commercial net indexing and searching services
such as Alta Vista, Excite, and Yahoo.

</p><p>If you have access to Usenet, see
the regular postings in the comp.sources.unix
and comp.sources.misc
newsgroups,
which describe
the archiving policies
for those groups
and how to
access their archives,

two of which are
<a href="ftp://gatekeeper.dec.com/pub/usenet/comp.sources.unix/"><TT>ftp://gatekeeper.dec.com/pub/usenet/comp.sources.unix/</TT></a>
and
<a href="ftp://ftp.uu.net/usenet/comp.sources.unix/"><TT>ftp://ftp.uu.net/usenet/comp.sources.unix/</TT></a>.
The
comp.archives newsgroup contains numerous
announcements of anonymous ftp availability of various items.
Finally, the
newsgroup comp.sources.wanted
is generally a more
appropriate place to post queries for source availability,
but check
<em>its</em>
FAQ list, ``How to find sources,''

before posting there.
</p><p>See also
questions <a href="faqcat973e.html?sec=fp#mathsrc">14.12</a>, <a href="faqcatccbd.html?sec=resources#tutsources">18.9b</a>, <a href="faqcatccbd.html?sec=resources#stdlibsrc">18.13</a>, and <a href="faqcatccbd.html?sec=resources#miscsrcs">18.15c</a>.
<hr><hr><hr>
<a name="faqavail">
<h1>
comp.lang.c FAQ list
<font color=blue>&middot;</font>
<a href="../../resources/faqavail.html"><!-- qtag -->Question 18.17</a>
</h1>
<p>
<font face=Helvetica size=8 color=blue><b>Q:</b></font>
Where can I get extra copies of this list?
</p>
<p><hr>
<p>
<font face=Helvetica size=8 color=blue><b>A:</b></font>
See question <a href="faqcat38c2.html?sec=misc#faqavail">20.40</a>.
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