woiccak@acsu.buffalo.edu (thomas s woiccak) (12/02/90)
I need some help. I've been using the Top-Speed M2 compiler for a few months
now. I've enjoyed every aspect of it except for 2 excluded features. 1 is
that there is no command line compiler. I really don't like the editor provided
and would love to use my Emacs editor. The other is that all of the compiler
files and my own files must be in the same BLOODY directory as the compiler.
1) Does anyone know (if possible) how to set the compiler up to look in
sub-dirs for stuff?
Also, I heard that the FST M2 compiler had a command line compiler, SO I got
that one and installed it. It lets me use my editor and it allows for sub-dirs
and is very clean and appeared powerful. Of course, that view didn't last.
My first attempt at compiling a class project crashed on this compiler but
not on Top-Speed's. This is the problem:
e:\m20\mylib>mc project2 /c
Modula-2 compiler, Version 2.0a
(C) Copyright 1987, 1988 Fitted Software Tools. All rights reserved.
Memory model in use: LARGE
Output file format: M2O
Compiling project2.mod (the main module)
-> project2.MOD
Pass 1
-> e:\m20\m2lib\System.DEF
-> wordlist.DEF, Line 38, Pos 70 -> illegal procedure type
This is the procedure declaration:
DEFINITION MODULE wordlist;
CONST
MaxWordLength = 28; (* Maximum length of a list word. *)
MergeCharMax = "~"; (* Character higher than any word *)
(* char. *)
TYPE
List; (* The type of list. *)
WordArray = ARRAY[0..MaxWordLength] OF CHAR; (* Word type for each *)
(* list element. *)
.
.
.
PROCEDURE Contents (CurrentWord : List; OfKey : BOOLEAN) : WordArray;
. ^
. |
. This is where the
error points me to.
This procedure simply returns a string that is held one of 2 fields of
the CurrentWord record in a list.
2)WHAT IS THIS COMPILIER TRYING TO TELL ME?
I N E E D to get one of these compiliers to do what I want!
Can anyone help me with either problem?
If it's easier, E-Mail me at woiccak@acsu.buffalo.edu
Thanks,
TOM WOICCAK
--
===============================================================================
Thomas S. Woiccak, State Univ. of New York at Buffalo, Dept. of Comp. Sci.
INTERNET: woiccak@acsu.buffalo.edu
BITNET: woiccak%acsu.buffalo.edu@ubvm.bitnetgkt@iitmax.IIT.EDU (George Thiruvathukal) (12/03/90)
In article <48608@eerie.acsu.Buffalo.EDU>, woiccak@acsu.buffalo.edu (thomas s woiccak) writes: >1) Does anyone know (if possible) how to set the compiler up to look in > sub-dirs for stuff? Depending upon what version of TopSpeed Modula-2 you are using, you can take advantage of the "redirection" file. In version 1, the file was named m2.red; in version 2, ts.red. > > Also, I heard that the FST M2 compiler had a command line compiler, SO I got >that one and installed it. It lets me use my editor and it allows for sub-dirs >and is very clean and appeared powerful. Of course, that view didn't last. You probably do not want to use the FST M2 compiler, even though it is one of the better free software packages. TopSpeed M2 is much better. TopSpeed has always supplied a command line compiler. In early versions the command line compiler was invoked as follows: m2 /c filename.mod Since version 2, the command line compiler has been a separate program from the TopSpeed multiple language environement. It is invoked as follows: tsc filename.mod You will have to check out the reference manuals for detailed information on how the command line compiler and redirection files are used. There is also an excellent feature in the TopSpeed compiler which cleanly generalizes the notion of "project" files. You can use project files to automate the compilation and linkage of all possible objects, including EXE, DLL, and LIB files. Once you set up your redirection files, I have no doubt that you will be able to do what you want to do, especially when it comes to "classes," so good luck. George Thiruvathukal gkt@iitmax.iit.edu
RW_GRIFFITHS@VAX.ACS.OPEN.AC.UK (12/05/90)
The TopSpeed Modula-2 compiler allows structured types to be returned as function results. Not all compilers allow this, some only allow simple types and pointer types to be returned. Maybe the FST compiler is like that. Try returning a pointer to your WordArray instead. Rob Griffiths Computing Department The Open University.
draper@buster.cps.msu.edu (Patrick J Draper) (12/06/90)
In article <INFO-M2%90120508321696@UCF1VM.BITNET> Modula2 List <INFO-M2%UCF1VM.BITNET@ucf1vm.cc.ucf.edu> writes: >The TopSpeed Modula-2 compiler allows structured types to be returned >as function results. Not all compilers allow this, some only allow >simple types and pointer types to be returned. Maybe the FST compiler >is like that. Try returning a pointer to your WordArray instead. > >Rob Griffiths >Computing Department >The Open University. FST allows complete structures to be returned through a var parameter. No pointers are necessary for FST. ------------------------------------------------------------------------ Patrick Draper In times like these it is helpful to buster.cps.msu.edu remember that there have always been times like these. ------------------------------------------------------------------------
RW_GRIFFITHS@VAX.ACS.OPEN.AC.UK (12/06/90)
>FST allows complete structures etc.. through var parameters ...
Returning function results through var parameters? A practice somewhat
frowned upon! Write a procedure instead.
Rob Griffiths
Computing Department
The Open Universitydraper@buster.cps.msu.edu (Patrick J Draper) (12/07/90)
In article <INFO-M2%90120607362197@UCF1VM.BITNET> Modula2 List <INFO-M2%UCF1VM.BITNET@ucf1vm.cc.ucf.edu> writes: >>FST allows complete structures etc.. through var parameters ... > >Returning function results through var parameters? A practice somewhat >frowned upon! Write a procedure instead. > >Rob Griffiths >Computing Department >The Open University Suppose you have a procedure that looks up a record in an index and returns the record number, a common database procedure. Both the database and index might have to be changed in the function, and need to be returned through variable parameters. example: PROCEDURE ReturnKeyRecord (VAR db : DB; VAR index : INDEX; key : ARRAY OF CHAR) : LONGCARD; This procedure accepts two types that hold all relevant information about the database and index files, such as record length, field names, etc. The return value is the record in the database where the key was found. Both db and index are modified by some aspect of this function (when the key is found, both the db and index file pointers are changed) and MUST be returned or the program will crash. The ability to return values through both the parameter and return value is a feature of M2 because it is intuitive, and is also a safe mechanism. The example I have given above is much more logical to me than the alternative form where a variable called record is a parameter. When I look at the function, I KNOW that the primary focus of the function is to return a LONGCARD based on the parameters given. ------------------------------------------------------------------------ Patrick Draper In times like these it is helpful to buster.cps.msu.edu remember that there have always been times like these. ------------------------------------------------------------------------