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From: uaa1006@dircon.co.uk (Peter Miles)
Newsgroups: comp.databases
Subject: Informix 4GL and C retquote function
Message-ID: <1991Jun30.164111.21858@dircon.co.uk>
Date: 30 Jun 91 16:41:11 GMT
Organization: The Direct Connection, UK
Lines: 24



I'm having difficulties with the retquote function, when I use 
it to return strings from a C program to an Informix 4GL program.

It works fine when I use it to return a string, but does not 
work when I try to return a NULL string.

How should I return a NULL string to the 4GL? Using the following:
        retquote(NULL);
        retquote("");
        retquote((char *)'\0');
        retquote('\0');
all cause an 'L' character to returned to the 4GL.

My 4GL uses a: LET retstr=func(abc) in the .4gl file and
the C function 'func'should return either a string or a NULL.

Any ideas?

Thanks, Pete
-- 
Pete Miles			uaa1006@dircon.co.uk
				...ukc!dircon!uaa1006