int

int

integer type

Syntax   int

Description   The int (integer) type has the values … 2, 1, 0, 1, 2 … Integers can be combined by various operators such as addition (+) and multiplication (*). Integers can also be combined with real numbers, in which case the result is generally a real number. An integer can always be assigned to a real variable, with implicit conversion to real.

Example

var counter, i : int var j : int := 9 var tax := 0 % The type is implicitly int because 0 is an integer

Details   See also explicitIntegerConstant. The real type is used instead of int when values have fractional parts as in 16.837. See the real type for details.
The operators on integers are +, -, * (multiply), div (truncating integer division), mod (integer remainder), ** (exponentiation), as well as comparisons (+, not=, >, >=, <, <=). The operators and, or and xor can be applied to non-negative integer values. The bit-wise boolean result is produced as an integer (actually, as a natural number). The shr (shift right) and shl (shift left) operators are also introduced.
Real numbers can be converted to integers using ceil (ceiling), floor, and round (see descriptions of these functions). Integers can be converted to real numbers using intreal, but in practice this is rarely used, because an integer value used in place of a real value will be automatically converted to real.
Integers can be converted to strings and back using intstr and strint. Integers can be converted to corresponding ASCII (or EBCDIC) characters using chr and ord. See the descriptions of these functions.
Pseudo-random sequences of integers can be generated using randint. See randint.
In current implementations of Turing, the range of integers is from -2147483647 to 2147483647. In other words, the maximum size of integer is 2**31 - 1. See maxint. This range exists because integers are stored in 4 bytes. The remaining negative value, -2147483648 records uninitialization. The types int1, int2 and int4 specify integers that fit into 1, 2 or 4 bytes. The intn types (int1, int2 and int4) are not checked for initialization and allow all their bit patterns as numbers.
The natural number type nat allows only the non-negative values: 0,1,2,3,… Natural number values can be used whenever integer values are expected and vice versa, given that the value does not exceed the range of the expected type.

See also   nat and intn.

Syntax	int
Description	The int (integer) type has the values … 2, 1, 0, 1, 2 … Integers can be combined by various operators such as addition (+) and multiplication (). Integers can also be combined with real* numbers, in which case the result is generally a real number. An integer can always be assigned to a real variable, with implicit conversion to real.
Example	`var counter, i : int var j : int := 9 var tax := 0 % The type is implicitly int because 0 is an integer`
Details	See also explicitIntegerConstant. The real type is used instead of int when values have fractional parts as in 16.837. See the real type for details. The operators on integers are +, -, * (multiply), div (truncating integer division), mod (integer remainder), (exponentiation), as well as comparisons (+, not=, >, >=, <, <=). The operators and, or and xor can be applied to non-negative integer values. The bit-wise boolean result is produced as an integer (actually, as a natural number). The shr (shift right) and shl (shift left) operators are also introduced. Real numbers can be converted to integers using ceil (ceiling), floor, and round (see descriptions of these functions). Integers can be converted to real numbers using intreal, but in practice this is rarely used, because an integer value used in place of a real value will be automatically converted to real. Integers can be converted to strings and back using intstr and strint. Integers can be converted to corresponding ASCII (or EBCDIC) characters using chr and ord. See the descriptions of these functions. Pseudo-random sequences of integers can be generated using randint. See randint. In current implementations of Turing, the range of integers is from -2147483647 to 2147483647. In other words, the maximum size of integer is 231 - 1. See maxint. This range exists because integers are stored in 4 bytes. The remaining negative value, -2147483648 records uninitialization. The types int1, int2 and int4 specify integers that fit into 1, 2 or 4 bytes. The intn types (int1, int2 and int4) are not checked for initialization and allow all their bit patterns as numbers. The natural number type nat allows only the non-negative values: 0,1,2,3,… Natural number values can be used whenever integer values are expected and vice versa, given that the value does not exceed the range of the expected type.
See also	nat and intn.