MathLink Q: Not working anymore!!
- To: mathgroup at smc.vnet.net
- Subject: [mg3265] MathLink Q: Not working anymore!!
- From: song at cs.purdue.edu (Chang-Hyeon Song)
- Date: Wed, 21 Feb 1996 02:16:54 -0500
- Organization: Purdue University
- Sender: owner-wri-mathgroup at wolfram.com
Hi. I am working on Math to C converter.
I put
:Evaluate: Attributes[M2C] = {HoldAll}
in my .tm file to get the whole expression availble in calling C function.
It used to work. But after I lost my .tm file, and recode it, it doesn't work
any more.
I have to use explicit Hold[] for argument to prevent evaluating.
The following is my .tm file
----------------
:Evaluate: BeginPackage["ConvertPackage`"]
:Evaluate: M2C::usage =
"M2C[exp] will convert given mathematica an expression or
a compound expression into a correspoding C program"
:Evaluate: Begin["Private`"]
:Begin:
:Function: m2c
:Pattern: M2C[exp_]
:Arguments: {exp}
:ArgumentTypes: {Manual}
:ReturnType: Manual
:End:
:Evaluate: Attributes[M2C] = {HoldAll}
:Evaluate: End[ ]
:Evaluate: EndPackage[ ]
-----------
Now I have to do M2C[Hold[ ]] instead of M2C[ ].
I also try to set attribute in MAthematica session after I install C function,
but it doesn't work either.
??M2C says
----------------
M2C[exp] will convert given mathematica an expression or
a compound expression into a correspoding C program
Attributes[M2C] = {HoldAll}
M2C[exp_] :=
ExternalCall[LinkObject["m2c", 2, 2],
CallPacket[0, {exp}]]
-----------------
Putting the Evalauate line in different line doesn't make any difference.
Can anybody help?
---
Chang Song (song at cs.purdue.edu)
==== [MESSAGE SEPARATOR] ====