package System is pragma Preelaborate(System);
type Name is implementation-defined-enumeration-type; System_Name : constant Name := implementation-defined;
-- System-Dependent Named Numbers:
Min_Int : constant := root_integer'First; Max_Int : constant := root_integer'Last;
Max_Binary_Modulus : constant := implementation-defined; Max_Nonbinary_Modulus : constant := implementation-defined;
Max_Base_Digits : constant := root_real'Digits; Max_Digits : constant := implementation-defined;
Max_Mantissa : constant := implementation-defined; Fine_Delta : constant := implementation-defined;
Tick : constant := implementation-defined;
-- Storage-related Declarations:
type Address is implementation-defined; Null_Address : constant Address;
Storage_Unit : constant := implementation-defined; Word_Size : constant := implementation-defined * Storage_Unit; Memory_Size : constant := implementation-defined;
-- Address Comparison: function "<" (Left, Right : Address) return Boolean; function "<="(Left, Right : Address) return Boolean; function ">" (Left, Right : Address) return Boolean; function ">="(Left, Right : Address) return Boolean; function "=" (Left, Right : Address) return Boolean; -- function "/=" (Left, Right : Address) return Boolean; -- "/=" is implicitly defined pragma Convention(Intrinsic, "<"); ... -- and so on for all language-defined subprograms in this package
-- Other System-Dependent Declarations: type Bit_Order is (High_Order_First, Low_Order_First); Default_Bit_Order : constant Bit_Order;
-- Priority-related declarations, See section D.1 Task Priorities.: subtype Any_Priority is Integer range implementation-defined; subtype Priority is Any_Priority range Any_Priority'First .. implementation-defined; subtype Interrupt_Priority is Any_Priority range Priority'Last+1 .. Any_Priority'Last;
Default_Priority : constant Priority := (Priority'First + Priority'Last)/2;
private ... -- not specified by the language end System;
The smallest (most negative) value allowed for the expressions of a signed_integer_type_definition.
The largest (most positive) value allowed for the expressions of a signed_integer_type_definition.
A power of two such that it, and all lesser positive powers of two, are allowed as the modulus of a modular_type_definition.
A value such that it, and all lesser positive integers, are allowed as the modulus of a modular_type_definition.
The largest value allowed for the requested decimal precision in a floating_point_definition.
The largest value allowed for the requested decimal precision in a floating_point_definition that has no real_range_specification. Max_Digits is less than or equal to Max_Base_Digits.
The largest possible number of binary digits in the mantissa of machine numbers of a user-defined ordinary fixed point type. (The mantissa is defined in Annex See section G Numerics (normative).)
The smallest delta allowed in an ordinary_fixed_point_definition that has the real_range_specification range -1.0 .. 1.0.
A period in seconds approximating the real time interval during which the value of Calendar.Clock remains constant.
The number of bits per storage element.
The number of bits per word.
An implementation-defined value that is intended to reflect the memory size of the configuration in storage elements.
NOTES
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