From ccl@www.ccl.net Thu Jul 24 11:19:02 1997 Received: from bedrock.ccl.net for ccl@www.ccl.net by www.ccl.net (8.8.3/950822.1) id KAA26101; Thu, 24 Jul 1997 10:39:34 -0400 (EDT) Received: from cicerone.uunet.ca for 45803892@prodigy.com by bedrock.ccl.net (8.8.6/950822.1) id KAA28433; Thu, 24 Jul 1997 10:39:32 -0400 (EDT) From: <45803892@prodigy.com> Received: from mail.uunet.ca ([206.175.106.156]) by mail.uunet.ca with SMTP id <116465-21961>; Thu, 24 Jul 1997 10:34:53 -0400 Received: from dfgdfg@baraj.com by 78283490@mrtger.com (8.8.5/8.6.5) with SMTP id GAA09225 for <82374hrfosdrf98379458>; Tue, 24 Jun 1997 02:02:12 -0600 (EST) Date: Tue, 24 Jun 1997 03:02:12 -0400 To: 82374hrfosdrf98379458@uunet.ca Subject: toner Message-ID: X-PMFLAGS: 90834hansdgf90sd8-54 X-UIDL: js9dft8954has8r7t038h4 Comments: Authenticated sender is <89278938@mortctr.com> (FOR ALL YOUR PRINTER/COPIER/FAX SUPPLIES) BENCHMARK PRINT SUPPLY 5579-B Chamblee Dunwoody Rd #371 Atlanta GA 30338 (770)512-0083 PRINTER SUPPLIES SPECIALS FOR THE MONTH OF JULY; New toner cartridge prices as follows: HEWLETT PACKARD Series 2,3=$59 Series 2P=$54 Series 4,4M,4 Plus =$79 Series 3SI/4SI=$85 Series 4L=$54 Series 5L=$50 Series 5P=$79 Series 4V=$100 Series 5SI= $145 Fax FX1/FX2=$59 Deskjet/Inkjet= $21 IBM/LEXMARK: Optra 4019/4029/4039=$125 EPSON: Models 7000/1500=$100 CANON FAX/PC'S: Fax 700,770,5000,7000=$59 PC Copier 6re/7/11=$69 PC Copier 320/740=$79 PLEASE CALL FOR OTHER PRINTER/FAX/COPIER/COMPUTER SUPPLIES NOT LISTED ABOVE - VISA/MASTERCARD/AMEX CARDS WELCOME - CORPORATE ACCOUNTS AVAILABLE W/APPROVED CREDIT- OFFICE HOURS ARE 10-6 EST IF YOU'RE GETTING YOUR TONER CHEEPER THAN OURS WE OFFER YOU A 10% DISCOUNT OFF OF WHAT YOU'RE PAYING. ASK FOR OUR FREE CATALOG. WE CARRY THE LARGEST SELECTION OF PRINTER/FAX/COPIER/COMPUTER SUPPLIES AVAILABLE. ORDER FROM BENCHMARK PRINT SUPPLY ONE OF THE LARGEST DISTRIBUTERS OF FAX/PRINTER/COPIER SUPPLIES WITH UNCONDITIONAL 1 YEAR WARRANTY ON ALL PRODUCTS . TO BE REMOVED FROM OUR LIST CLICK ON BLUE BELOWAND IN THE HEADER TYPE "REMOVE". click here mailto:capital@answerme.com From 45803892@prodigy.com Thu Jul 24 11:22:50 1997 Received: from cicerone.uunet.ca for 45803892@prodigy.com by www.ccl.net (8.8.3/950822.1) id KAA26108; Thu, 24 Jul 1997 10:39:43 -0400 (EDT) From: <45803892@prodigy.com> Received: from mail.uunet.ca ([206.175.106.156]) by mail.uunet.ca with SMTP id <116465-21961>; Thu, 24 Jul 1997 10:34:53 -0400 Received: from dfgdfg@baraj.com by 78283490@mrtger.com (8.8.5/8.6.5) with SMTP id GAA09225 for <82374hrfosdrf98379458>; Tue, 24 Jun 1997 02:02:12 -0600 (EST) Date: Tue, 24 Jun 1997 03:02:12 -0400 To: 82374hrfosdrf98379458@uunet.ca Subject: toner Message-ID: X-PMFLAGS: 90834hansdgf90sd8-54 X-UIDL: js9dft8954has8r7t038h4 Comments: Authenticated sender is <89278938@mortctr.com> (FOR ALL YOUR PRINTER/COPIER/FAX SUPPLIES) BENCHMARK PRINT SUPPLY 5579-B Chamblee Dunwoody Rd #371 Atlanta GA 30338 (770)512-0083 PRINTER SUPPLIES SPECIALS FOR THE MONTH OF JULY; New toner cartridge prices as follows: HEWLETT PACKARD Series 2,3=$59 Series 2P=$54 Series 4,4M,4 Plus =$79 Series 3SI/4SI=$85 Series 4L=$54 Series 5L=$50 Series 5P=$79 Series 4V=$100 Series 5SI= $145 Fax FX1/FX2=$59 Deskjet/Inkjet= $21 IBM/LEXMARK: Optra 4019/4029/4039=$125 EPSON: Models 7000/1500=$100 CANON FAX/PC'S: Fax 700,770,5000,7000=$59 PC Copier 6re/7/11=$69 PC Copier 320/740=$79 PLEASE CALL FOR OTHER PRINTER/FAX/COPIER/COMPUTER SUPPLIES NOT LISTED ABOVE - VISA/MASTERCARD/AMEX CARDS WELCOME - CORPORATE ACCOUNTS AVAILABLE W/APPROVED CREDIT- OFFICE HOURS ARE 10-6 EST IF YOU'RE GETTING YOUR TONER CHEEPER THAN OURS WE OFFER YOU A 10% DISCOUNT OFF OF WHAT YOU'RE PAYING. ASK FOR OUR FREE CATALOG. WE CARRY THE LARGEST SELECTION OF PRINTER/FAX/COPIER/COMPUTER SUPPLIES AVAILABLE. ORDER FROM BENCHMARK PRINT SUPPLY ONE OF THE LARGEST DISTRIBUTERS OF FAX/PRINTER/COPIER SUPPLIES WITH UNCONDITIONAL 1 YEAR WARRANTY ON ALL PRODUCTS . TO BE REMOVED FROM OUR LIST CLICK ON BLUE BELOWAND IN THE HEADER TYPE "REMOVE". click here mailto:capital@answerme.com From gillies@cmcnrc.far.ruu.nl Thu Jul 24 12:21:15 1997 Received: from cmcind.far.ruu.nl for gillies@cmcnrc.far.ruu.nl by www.ccl.net (8.8.3/950822.1) id LAA26683; Thu, 24 Jul 1997 11:38:56 -0400 (EDT) Received: from cmcnrc.far.ruu.nl by cmcind.far.ruu.nl via ESMTP (950413.SGI.8.6.12/940406.SGI) for <@cmcind.far.ruu.nl:chemistry@www.ccl.net> id RAA22903; Thu, 24 Jul 1997 17:35:52 +0200 Received: from cmcnrc by cmcnrc.far.ruu.nl via ESMTP (950413.SGI.8.6.12/940406.SGI) for id RAA16700; Thu, 24 Jul 1997 17:35:51 +0200 Message-Id: <199707241535.RAA16700@cmcnrc.far.ruu.nl> To: chemistry@www.ccl.net Reply-To: Malcolm Gillies Subject: Conference Announcement: MGM EC-2 Date: Thu, 24 Jul 1997 17:35:50 +0200 From: Malcolm Gillies Second Electronic Molecular Graphics and Modelling Conference ************************************************************* October 6-17, 1997 World Wide Web: http://www.vei.co.uk/mgmec2/ Email: mgmnorg@vei.co.uk The Second Electronic Molecular Graphics and Modelling Conference (MGM EC-2) will be held on the Internet and World Wide Web from Oct 6-17, 1997 and will cover a broad range of disciplines related to molecular modelling, graphics and simulation methods and applications. Conference subject areas are: Protein Structure; Membranes and Membrane Proteins; Protein Folding; Modelling of In Vivo Activity; Knowledge-based Library Design; Surface Science; Host-guest interactions; Carbohydrates and Protein-Carbohydrate Interactions; Enzyme Mechanisms; Conformational Sampling; Nucleic Acids; Quantum Chemistry; Structure-based Design; Visualization; and Perspectives. Presentations of papers or posters must be prepared in Hypertext Markup Language (HTML) with figures in GIF or other Web-compatible formats so that participants can view the papers via the World Wide Web (The presentations may also include enhancements such as 3D structures, VRML, Java, RealAudio, Quicktime movies etc.) Authors may submit WWW presentations for non-permanent display during the conference, or for refereed print or electonic publication in the Journal of Molecular Graphics or the Internet Journal of Chemistry (IJC), http://www.ijc.com/ During the conference, interaction, presentations and discussions will take place via the Internet using a Java-based virtual conference centre, WWW-based discussion forums and an electronic mailing list. Before the conference, a timetable for lectures and discussion sessions for each section will be posted. The Conference will feature a Virtual Exhibition where exhibitors will be able to describe the activities of their organization, display their products and services and interact with registrants. Potential exhibitors should contact the conference organisers. Further information regarding the conference is available from the conference WWW site at http://www.vei.co.uk/mgmec2/ Inquiries may also be sent by email to the conference organisers at mgmnorg@vei.co.uk REGISTRATION ************ If you intend to participate in MGM EC-2 please use the special registration form accessible via http://www.vei.co.uk/mgmec2/. In addition it is necessary to pay for registration via ordinary means: The conference fee will be 45 pounds sterling (75 US dollars) with a special rate for students of 30 pounds sterling (50 US dollars). DEADLINES AND DATES ******************* 1) DEADLINE for receipt of ABSTRACT. The deadline for receipt of presentation abstracts is September 1. 2) DEADLINE for receipt of PRESENTATION The deadline for receipt of papers and posters is September 15. 3) Refereeing Period The refereeing period will commence upon completion of the conference. Molecular Graphics & Modelling Network (MGMN) mailing list ********************************************************** Conference-related news and announcements will be posted regularly to the MGMN mailing list (mgmn@vei.co.uk). If you wish to subscribe to the MGMN list send the following one line message to mgmn-request@vei.co.uk subscribe mgmn@vei.co.uk your_email@address To unsubscribe send the following message: unsubscribe mgmn@vei.co.uk your_email@address -- Malcolm Gillies Molecular Modelling Coordinator Virtual Environments International http://www.vei.co.uk/ From dalke@ks.uiuc.edu Thu Jul 24 19:21:09 1997 Received: from london.ks.uiuc.edu for dalke@ks.uiuc.edu by www.ccl.net (8.8.3/950822.1) id SAA28905; Thu, 24 Jul 1997 18:30:09 -0400 (EDT) Received: from bilbao.ks.uiuc.edu by london.ks.uiuc.edu with ESMTP (1.37.109.20/16.2 [TBG Mods]) id AA132993410; Thu, 24 Jul 1997 17:30:10 -0500 Received: (from dalke@localhost) by bilbao.ks.uiuc.edu (940816.SGI.8.6.9/8.6.9)id RAA00613; Thu, 24 Jul 1997 17:30:04 -0500 Date: Thu, 24 Jul 1997 17:30:04 -0500 From: Andrew Dalke Message-Id: <199707242230.RAA00613@bilbao.ks.uiuc.edu> To: CHEMISTRY@www.ccl.net Subject: Re: Object-oriented means for computational chemist Cc: shenkin@still3.chem.columbia.edu Hello, > The issue I was trying to raise is that regardless of whether one > wants to write the front end in C, C++ or Fortran, or anything else, > the language definition of C++ *precludes* writing a linkable code > libraries in C++ if one ever wants to access the library routines > from another language. That's not quite true. The real requirement is you need a linker that understands how to deal with your C++ compiler . For instance, I can write an interface to a C++ class for C by defining a set of exported functions (in extern "C" context) that are compiled by C++. (I put an example at the end of this email.) There will be two problems: The implementations of 'new' and 'delete' require a special function be linked in, which you will need via the C++ linker. There will also be problems if you use C++'s static variables with class types. All static variables are initialized at before main() is run, so the linker has to add the code that runs the initializations before calling main. The standard linker doesn't do this so here again you need to use the C++ linker (this feature is just not possible with C or Fortran; if variables and arrays are initialized, they are initialized to 0). The biggest limitation is really that I can't link my C++ library created under one compiler with C++ generated from another. But then, all the code I distribute is available in source form so that hasn't been much of a problem. Andrew Dalke dalke@ks.uiuc.edu Here's an example of C wrapper functions for a C++ class. There are three files; the header file includes both the C and C++ APIs. The file 'class.C' contains the class code and does the C-level interface, and main.c is a driver. This uses the 'extern "C"' feature of C++ to turn off name mangling when compiling under C++. = = = = = = = = = class.h = = = = = = = #ifdef __cplusplus class MyClass { int data; public: MyClass(int new_value); ~MyClass(void); int get(void); }; #endif /* for the C interface; doing it this way instead of using a void * */ /* directly lets the compiler do better type checking and keeps the */ /* same "feel" as C++ */ typedef struct MyClass_C { void *class_ptr; } MyClass_C; #ifdef __cplusplus extern "C" { #endif MyClass_C MyClass_new(int new_value); void MyClass_delete(MyClass_C); int MyClass_get(MyClass_C); #ifdef __cplusplus }; #endif = = = = = = = = = =class.C = = = = = = = = = = #include #include "class.h" /* a simple int storage class */ MyClass::MyClass(int new_value) { data = new_value; } MyClass::~MyClass(void) { data = 0; } int MyClass::get(void) { return data; } /* Wrappers for the C interface */ MyClass_C MyClass_new(int new_value) { MyClass_C tmp; tmp.class_ptr = new MyClass(new_value); return tmp; } void MyClass_delete(MyClass_C ref) { delete ((MyClass *) ref.class_ptr); ref.class_ptr = NULL; } int MyClass_get(MyClass_C ref) { return ((MyClass *) ref.class_ptr)->get(); } = = = = = = = = = =main.c = = = = = = /* The driver code -- compile this in C! */ #include #include "class.h" main() { MyClass_C tmp = MyClass_new(5); printf("The value is %d.\n", MyClass_get(tmp)); MyClass_delete(tmp); } = = = = = = Here's how I ran it (using GNU's C++ compiler, SGI's C compiler, and GNU's C++ linker to prove nothing fishy was going on): % g++ -c class.C % cc -c main.c % g++ main.o class.o % ./a.out The value is 5. So it is possible for C routines to call C++ functions and classes.