Mail Archives: djgpp/1999/04/13/06:50:39
From: | "Rafael García" <rafael AT geninfor DOT com>
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Newsgroups: | comp.os.msdos.djgpp
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Subject: | BOOL as char/int
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Date: | Tue, 13 Apr 1999 12:03:07 +0200
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Organization: | CTV/JET
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Message-ID: | <7ev4na$49a$1@lola.ctv.es>
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To: | djgpp AT delorie DOT com
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DJ-Gateway: | from newsgroup comp.os.msdos.djgpp
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Reply-To: | djgpp AT delorie DOT com
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Look at this:
#include <stdio.h>
typedef char /*int*/ BOOL;
#define TRUE 1
#define FALSE 0
main() {
BOOL flag=(BOOL)isupper('E');
puts(flag?"*TRUE*":"*FALSE*");
return 0;
}
It fails with BOOL as char, but works as int
Can someone explain this reasonably?
It works well with Borland
I have been using this typedef for years and it seems standard, robust,
good, pretty, simple, near-machine, fast, compact...
It seems gods of chaos are conquering the world of computing
- Raw text -