Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
1999
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 1999

[Date Index] [Thread Index] [Author Index]

Search the Archive

MathLink String type

  • To: mathgroup at smc.vnet.net
  • Subject: [mg19993] MathLink String type
  • From: fischerc at itam.cas.cz
  • Date: Thu, 23 Sep 1999 23:26:34 -0400
  • Organization: Deja.com - Share what you know. Learn what you don't.
  • Sender: owner-wri-mathgroup at wolfram.com

I am not able to compile simple MathLink function (Mathematica v. 4, Linux),
which use a string as an argument. Like this:

:Begin:
:Function:       StringLength
:Pattern:        StringLength[s_String]
:Arguments:      { s}
:ArgumentTypes:  { String }
:ReturnType:     Integer
:End:

:Evaluate: StringLength::usage = "StringLength[s_String] gives the
length of s."

#include "mathlink.h"

int StringLength( char * s)
{ int i=0; char *t = s;
  while(*(t++)) i++;
  return i; }

int main(argc, argv)int argc; char* argv[];
{ return MLMain(argc, argv); }

The compiling stage aborts with
StringLength.tm.c:37: conflicting types for `StringLength'
StringLength.tm:14: previous declaration of `StringLength'

The mcc compiler replaces the  char * s argument specification by
int StringLength P(( kcharp_ct _tp1));
Such declaration I do not understand well.
Thank for the advice


Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.


  • Prev by Date: TeXForm in v4 better?
  • Next by Date: Contourline values
  • Previous by thread: Re: TeXForm in v4 better?
  • Next by thread: Re: MathLink String type