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Ingy döt Net 2026-02-01 16:33:20 -08:00
parent 5150844a7d
commit 4bb20c9b71
7735 changed files with 38060 additions and 199180 deletions
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51
Task/Integer-overflow/Ada/integer-overflow.ada
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@ -1,51 +0,0 @@
with Ada.Text_IO; use Ada.Text_IO;
procedure Overflow is
generic
type T is Range <>;
Name_Of_T: String;
procedure Print_Bounds; -- first instantiate this with T, Name
-- then call the instantiation
procedure Print_Bounds is
begin
Put_Line(" " & Name_Of_T & " " & T'Image(T'First)
& " .." & T'Image(T'Last));
end Print_Bounds;
procedure P_Int is new Print_Bounds(Integer, "Integer ");
procedure P_Nat is new Print_Bounds(Natural, "Natural ");
procedure P_Pos is new Print_Bounds(Positive, "Positive");
procedure P_Long is new Print_Bounds(Long_Integer, "Long ");
type Unsigned_Byte is range 0 .. 255;
type Signed_Byte is range -128 .. 127;
type Unsigned_Word is range 0 .. 2**32-1;
type Thousand is range 0 .. 999;
type Signed_Double is range - 2**63 .. 2**63-1;
type Crazy is range -11 .. -3;
procedure P_UB is new Print_Bounds(Unsigned_Byte, "U 8 ");
procedure P_SB is new Print_Bounds(Signed_Byte, "S 8 ");
procedure P_UW is new Print_Bounds(Unsigned_Word, "U 32 ");
procedure P_Th is new Print_Bounds(Thousand, "Thous");
procedure P_SD is new Print_Bounds(Signed_Double, "S 64 ");
procedure P_Cr is new Print_Bounds(Crazy, "Crazy");
A: Crazy := Crazy'First;
begin
Put_Line("Predefined Types:");
P_Int; P_Nat; P_Pos; P_Long;
New_Line;
Put_Line("Types defined by the user:");
P_UB; P_SB; P_UW; P_Th; P_SD; P_Cr;
New_Line;
Put_Line("Forcing a variable of type Crazy to overflow:");
loop -- endless loop
Put(" " & Crazy'Image(A) & "+1");
A := A + 1; -- line 49 -- this will later raise a CONSTRAINT_ERROR
end loop;
end Overflow;