From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | Leandro Fanzone <leandro(at)hasar(dot)com> |
Cc: | pgsql-hackers(at)postgreSQL(dot)org |
Subject: | C++ and bool constants (was Re: [NOVICE] gcc 3.0.1) |
Date: | 2001-08-26 06:42:00 |
Message-ID: | 17492.998808120@sss.pgh.pa.us |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers pgsql-novice |
Leandro Fanzone <leandro(at)hasar(dot)com> writes:
> I have compiled PostgreSQL 7.1.2 with gcc 3.0.1, and have the following
> problem: if I include first libpq++.h before iostream, id est:
> #include <libpq++.h>
> #include <iostream>
> the compiler complains:
> This is because somewhere in PostgreSQL you have the following code:
> #ifndef true
> #define true ((bool)1)
> #endif
Yeah. c.h has
#ifndef __cplusplus
#ifndef bool
typedef char bool;
#endif /* ndef bool */
#endif /* not C++ */
#ifndef true
#define true ((bool) 1)
#endif
#ifndef false
#define false ((bool) 0)
#endif
It's been like that for quite some time, but it's always struck me as
bizarre: if we're willing to trust a C++ compiler to provide type
bool, why would we not trust it to provide the literals true and false
as well? ISTM the code should read
#ifndef __cplusplus
#ifndef bool
typedef char bool;
#endif
#ifndef true
#define true ((bool) 1)
#endif
#ifndef false
#define false ((bool) 0)
#endif
#endif /* not C++ */
Does anyone have an objection to this?
regards, tom lane
From | Date | Subject | |
---|---|---|---|
Next Message | Peter Eisentraut | 2001-08-26 12:37:25 | Re: Re: [PATCHES] Makefile.PL for Pg.so |
Previous Message | Gowey, Geoffrey | 2001-08-26 05:50:57 | RE: version 1 C-Language Functions documentation and ex ample |
From | Date | Subject | |
---|---|---|---|
Next Message | Justin Clift | 2001-08-26 07:25:00 | New FAQ : FAQ: Working with Dates and Times in PostgreSQL |
Previous Message | Oliver Elphick | 2001-08-25 17:59:31 | Re: How to allow other users create databases ? |