Operator

Standard Operations

Arithmetic Multiplication

The "*" operator is defined as arithmetic multiplication for all numeric types.

function "*" (Left, Right : T) return T;
Usage
A : constant Float   := 5.0 * 2.0;  -- A is now 10.0
B : constant Integer := 5 * 2;      -- B is also 10
Working Example

procedure Operator_Multiply is
A : constant Float   := 5.0 * 2.0;  -- A is now 10.0
B : constant Integer := 5 * 2;      -- B is also 10

package T_IO renames Ada.Text_IO;
package F_IO is new  Ada.Text_IO.Float_IO (Float);
package I_IO is new  Ada.Text_IO.Integer_IO (Integer);

begin
T_IO.Put ("A = ");
F_IO.Put (
Item => A,
Fore => 3,
Aft  => 1,
Exp  => 0);
T_IO.New_Line;
T_IO.Put ("B = ");
I_IO.Put (
Item  => B,
Width => 3,
Base  => 10);
T_IO.New_Line;
end Operator_Multiply;

Common Non-Standard Operations

Character replication

A String is created where a single character is replicated n-times.

function "*" (Left : Natural; Right : Character) return String;

In addition to standard Strings this operator is also defined for Bounded_String and Unbounded_String.

Usage
A : constant String := 10 * 'X';  -- A is filled with 10 X
Working Example

The character replication operator is part of the Ada.Strings.Fixed package. You need to with and use the package to make the operator visible.

procedure Operator_Multiply_2 is

A : constant String := 10 * 'X';  -- A is filled with 10 X

package T_IO renames Ada.Text_IO;

begin
T_IO.Put_Line ("A = " & A);
end Operator_Multiply_2;

String replication

A String is created where a source string is replicated n-times.

function "*" (Left : Natural; Right : String) return String;

In addition to standard fixed strings this operator is also defined for Bounded_String and Unbounded_String.

Usage
A : constant String := 3 * "Hello ";  -- A is filled with 3 Hello
Working Example

The string replication operator is part of the Ada.Strings.Fixed package. You need to with and use the package to make the operator visible.

procedure Operator_Multiply_3 is

A : constant String := 3 * "Hello ";  -- A is filled with 3 Hello.

package T_IO renames Ada.Text_IO;

begin
T_IO.Put_Line ("A = " & A);
end Operator_Multiply_3;