From: bill@mooner
Subject: Ada or C++ acting 'correctly' here?
Date: 1999/02/27
Date: 1999-02-27T00:00:00+00:00 [thread overview]
Message-ID: <7b8c7u$sj1@drn.newsguy.com> (raw)
Hello,
compare these 2 little programs, do same thing, one in C++
and one in Ada. The C++ program compiles Ok, but result is
negative, the Ada program refused to compile:
----------------------------
#include <iostream>
int main()
{
cout<<(500000000*7);
return 0;
}
-----------------------------
%g++ -Wall test_mult.cc
%./a.out
-794967296
(this is g++ 2.8.1)
----------------------------
with Ada.Integer_Text_Io; use Ada.Integer_Text_Io;
procedure Test_Multi is
begin
Put( 500000000*7 );
end Test_Multi;
-----------------------------
$gnatmake test_multi.adb
gcc -c test_multi.adb
test_multi.adb:6:18: value not in range of type "Standard.Integer"
test_multi.adb:6:18: static expression raises "Constraint_Error"
gnatmake: "test_multi.adb" compilation error
Now. Which would you consider the correct language behaviour?
(same machine, Pentium pro, Linux.
Bill.
next reply other threads:[~1999-02-27 0:00 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-02-27 0:00 bill [this message]
1999-02-27 0:00 ` Ada or C++ acting 'correctly' here? Matthew Heaney
1999-02-27 0:00 ` Gautier.DeMontmollin
1999-02-27 0:00 ` Florian Weimer
[not found] ` <36e8e201.48455851@netnews.worldnet.att.net>
1999-03-18 0:00 ` bglbv
1999-02-27 0:00 ` Claudius Proculus
1999-02-27 0:00 ` Biju Thomas
1999-02-28 0:00 ` robert_dewar
1999-02-28 0:00 ` Florian Weimer
1999-03-01 0:00 ` dewar
1999-02-27 0:00 ` Steve Doiel
1999-02-28 0:00 ` William McKenzie
1999-03-01 0:00 ` Hubert B. Keller
1999-03-01 0:00 ` fraser
1999-02-28 0:00 ` robert_dewar
1999-03-02 0:00 ` Willliam V
1999-03-02 0:00 ` Gautier.DeMontmollin
1999-03-02 0:00 ` kvisko
1999-03-02 0:00 ` Pascal Obry
1999-03-02 0:00 ` SpamSpamSpam
1999-03-02 0:00 ` robert_dewar
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