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From: webb@webb.UUCP
Newsgroups: comp.lang.c++
Subject: C++ compiler problems
Message-ID: <31900003@webb>
Date: Wed, 23-Sep-87 16:03:00 EDT
Article-I.D.: webb.31900003
Posted: Wed Sep 23 16:03:00 1987
Date-Received: Sun, 27-Sep-87 22:09:41 EDT
Lines: 53
Nf-ID: #N:webb:31900003:000:1921
Nf-From: webb.applicon.UUCP!webb    Sep 23 16:03:00 1987


  We are running C++ 1.2.1.  I am trying to compile OOPSLIB (a library of 
Smalltalk objects for C++, distributed by Keith E. Gorlen of The National 
Institutes of Health).  I first have problems with the compiler complaining
that it cannot tell an int from an unsigned int with the following code:

overload MAX;
inline int      MAX(int a,int b)        { return a >= b ? a : b; }
inline long     MAX(long a,long b)      { return a >= b ? a : b; }
inline float    MAX(float a,float b)    { return a >= b ? a : b; }
inline double   MAX(double a,double b)  { return a >= b ? a : b; }
inline unsigned int   MAX(unsigned int a, unsigned int b)     { return a >= b ? a : b; }

When I comment out the last line that problem goes away, the compilation
proceeds further, and I get the following error:

"Arraychar.c", line 78: error:  name _reader of type type name cannot be overloaded
"Arraychar.c", line 78: error: bad base type: void Arraychar 

The offending line (#78) is:

DEFINE_CLASS(Arraychar,Collection,1,NULL,NULL);

and DEFINE_CLASS is #define'd as:

#define DEFINE_CLASS(classname,basename,version,initor1,initor2)\
overload classname\
_reader;\ 
static void classname\
_reader(istream& strm, Object& where) { new classname(strm,*(classname*)&where)\; }\
static void classname\
_reader(fileDescTy& fd, Object& where) { new classname(fd,*(classname*)&where);\ }\
Class class_\ 
classname = Class( class_\
basename, "\
classname\
", version, sizeof(classname),classname\
_reader, classname\
_reader, initor1, initor2);\
const Class* classname::isA()   { return &class_\
classname; }

I am not a C++ wizard, (I only dabble) but I need to get this package running.
Anyone out there have any ideas?  Anyone been able to get this package to
run?

Thanks for any help you can provide.


				Peter Webb.

{allegra|decvax|harvard|yale|mirror}!ima!applicon!webb, 
{raybed2|spar|ulowell|sun}!applicon!webb, webb@applicon.com