abstract struct Int

Overview

Int is the base type of all integer types.

There are four signed integer types: Int8, Int16, Int32 and Int64, being able to represent numbers of 8, 16, 32 and 64 bits respectively. There are four unsigned integer types: UInt8, UInt16, UInt32 and UInt64.

An integer literal is an optional + or - sign, followed by a sequence of digits and underscores, optionally followed by a suffix. If no suffix is present, the literal's type is the lowest between Int32, Int64 and UInt64 in which the number fits:

1 # Int32

1_i8  # Int8
1_i16 # Int16
1_i32 # Int32
1_i64 # Int64

1_u8  # UInt8
1_u16 # UInt16
1_u32 # UInt32
1_u64 # UInt64

+10 # Int32
-20 # Int32

2147483648          # Int64
9223372036854775808 # UInt64

The underscore _ before the suffix is optional.

Underscores can be used to make some numbers more readable:

1_000_000 # better than 1000000

Binary numbers start with 0b:

0b1101 # == 13

Octal numbers start with 0o:

0o123 # == 83

Hexadecimal numbers start with 0x:

0xFE012D # == 16646445
0xfe012d # == 16646445

Included Modules

Direct Known Subclasses

Defined in:

to_con.cr

Instance Method Summary

Instance methods inherited from struct Value

==(other : CON::Any) ==

Instance methods inherited from class Object

===(other : CON::Any) ===, from_con(con : String | IO) from_con, to_con(io : IO)
to_con
to_con
, to_pretty_con(indent : String = " ")
to_pretty_con(io : IO, indent : String = " ")
to_pretty_con

Instance Method Detail

def to_con(con : CON::Builder) #

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