From: Kas_le_chat <kasino@attcanada.net>
Subject: loop and constraint error
Date: 1998/10/11
Date: 1998-10-11T00:00:00+00:00 [thread overview]
Message-ID: <3620E968.526B@attcanada.net> (raw)
I am new to ADA and I have a program to do in this langage at school.
In this projet I have to get a quantity between 0 and 50.From that
quantity I have to distribute it in some variables depending on a
certain range.When i am out of that fiel 0..50 the program end whit
constraint error, but I nead it to loop to the get variable and dont
know how to do this.If you got any answers it will be welcome. Thanks.
This is the code I am working whit:
With text_io;
use text_io;
procedure pomme is
package es_reels is new text_io.float_io(float);
--------d�clation des constantes-----------------------
c_5kg :constant float := 5.0;
c_10kg:constant float := 10.0;
c_20kg:constant float := 20.0;
---------d�claration des variables----------------------
v_pommes : float range 0.0..50.0; --Pour indiquer les bornes de 0 � 50
kg;
v_pomme1 : float; --de o � 5 kg, n�cessaire au calcul du prix;
v_pomme2 : float; --de 05 � 10 kg, n�cessaire au calcul du prix;
V_pomme3 : float; --de 10 � 20 kg, n�cessaire au calcul du prix;
v_pomme4 : float; --de 20 � 50 kg, n�cessaire au calcul du prix;
---------exeptions--------------------------------------
e_exeption: exception;
begin
text_io.put("Entrez la quantitee de pomme, MINIMUM 0 et MAXIMUM 50 Kg:
");
es_reels.get(v_pommes);--Pour obtenir la quantite de pommes
text_io.skip_line;
if
((0.0 < v_pommes) and (v_pommes <= float(5.0))) then v_pomme1 :=
v_pommes; v_pomme2 := 0.0; v_pomme3 := 0.0;v_pomme4 := 0.0;
elsif
((05.0 < v_pommes) and (v_pommes <= 10.0)) then v_pomme2 := v_pommes
- c_5kg;
v_pomme1 := 5.0; v_pomme3 := 0.0; v_pomme4 := 0.0;
elsif
((10.0 < v_pommes) and (v_pommes <= 20.0)) then v_pomme3:= v_pommes
- c_10kg;
v_pomme2 := 5.0; v_pomme1 := 5.0; v_pomme4 := 0.0;
elsif
((20.0 < v_pommes) and (v_pommes <= 50.0)) then v_pomme4 := v_pommes
- c_20kg;
v_pomme3 := 10.0; v_pomme2 := 5.0; V_pomme1 := 5.0;
end if;
exception when e_exeption =>
if ((v_pommes < float(0.0)) or (v_pommes >
float(50.0)))then -- condition, la quantite de pomme doit etre plus
grande que 0.0 et plus petite que 50.
text_io.put("La quantit� de pomme n'est pas comprise
entre 0 et 50 kg. ");loop
end loop;
end if;
--------Sortie--------------------
text_io.put("pomme1= ");
es_reels.put (item=>V_pomme1);
text_io.skip_line;
text_io.put("pomme2= ");
es_reels.put (item=>V_pomme2);
text_io.skip_line;
text_io.put("pomme3= ");
es_reels.put (item =>V_pomme3);
text_io.skip_line;
text_io.put("pomme4= ");
es_reels.put (item =>V_pomme4);
text_io.skip_line;
end pomme;
next reply other threads:[~1998-10-11 0:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-10-11 0:00 Kas_le_chat [this message]
1998-10-12 0:00 ` loop and constraint error Frank Ecke
1998-10-12 0:00 ` loop and constraint error(Thanks that fix .....) Kas_le_chat
1998-10-13 0:00 ` Matthew Heaney
1998-10-13 0:00 ` loop and constraint error(Thanks that fix ..it all) Kas_le_chat
1998-10-12 0:00 ` loop and constraint error- I really nead help for this problem thanks Kas_le_chat
1998-10-12 0:00 ` alan walkington
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