#define in 4gl
Steve Farris asked whether 4GL had a #define or equivalent. ram_cnc said there is no such syntax. Jonathan Leffler explained # is a comment in I4GL, so the C preprocessor can be used only if other comment styles are used, though it disturbs line numbers, and he had an m4 approach preserving them. Marco Greco pointed to the fglpp preprocessor script and the IIUG repository.
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In article <38F25D8B.287D77D7@mindspring.com>, steve farris <nlymbo@mindspring.com> wrote: > Hello, > is there a #define (or equiv.) in 4gl. It doesn't seem to work > ex. > > #define NOTFOUND -1 > > Thanks! I am assuming that your questions are specific to 4GL and not D4GL. 4GL is a programming language with very easy adaptability and usage. There is no such syntax as #define. You define variables like: define i smallint define j,k integer define curr_num like yourtablename.column Hope this helps. Ram S. > -- > steve farris > flamenco/classical guitar site at http://www.mindspring.com/~nlymbo > > Sent via Deja.com http://www.deja.com/ Before you buy.
Hello, is there a #define (or equiv.) in 4gl. It doesn't seem to work ex. #define NOTFOUND -1 Thanks! -- steve farris flamenco/classical guitar site at http://www.mindspring.com/~nlymbo
steve farris wrote: > is there a #define (or equiv.) in 4gl. It doesn't seem to work > ex. > > #define NOTFOUND -1 Well, #define is a comment, of course. There is no standard way to do it, partly because # is a comment in I4GL. However, if you are disciplined and only use the other two comment conventions (-- and { }), you can preprocess your files into 4gl source code with the C pre- processor. The problem is that the C preprocessor messes up the line numbering in the code for you; it includes the bodies of all the headers in the file, leaving blank lines (typically) in lieu of the #defines. I did once implement a system using m4 which rather carefully preserved the original line numbering. I could let you have a copy if you ask nicely :-) -- Jonathan Leffler (jleffler@informix.com, jleffler@earthlink.net) Guardian of DBD::Informix v1.00.PC1 -- see http://www.perl.com/CPAN #include <disclaimer.h>
http://www.4glworks.com/dnld/fglpp.sh.Z, or have a look at the iiug software repository -- Ciao, Marco ______________________________________________________________________________ Marco Greco <marco@informix.com> Standard disclaimers apply! Informix faq http://www.iiug.org/techinfo/faq/informix.htm 4glworks http://www.4glworks.com Informix on Linux http://www.4glworks.com/ifmxlinux.htm