Primitive data types

There are several data types predefined in Kaitai Struct, thus they are used as basic building blocks for more complex data types:

Integers

Generally, integer type specification follows this pattern: ([us])(1|2|4|8)(le|be)

First letter — u or s — specifies either unsigned or signed integer respectively
Second group — 1, 2, 4 or 8 — specifies width of an integer in bytes
Third group — le or be — specifies little-endian or big-endian encoding respectively; it can be omitted if default endianness specified in meta.endian in file description.

For the sake of completeness, here's the full table of available integer types:

`type`	Width, bits	Signed?	Endianness	Min value	Max value
`u1`	8	No	N/A	0	255
`u2le`	16	No	Little	0	65535
`u2be`	16	No	Big	0	65535
`u4le`	32	No	Little	0	4294967295
`u4be`	32	No	Big	0	4294967295
`u8le`	64	No	Little	0	18446744073709551615
`u8be`	64	No	Big	0	18446744073709551615
`s1`	8	Yes	N/A	-128	127
`s2le`	16	Yes	Little	-32768	32767
`s2be`	16	Yes	Big	-32768	32767
`s4le`	32	Yes	Little	-2147483648	2147483647
`s4be`	32	Yes	Big	-2147483648	2147483647
`s8le`	64	Yes	Little	-9223372036854775808	9223372036854775807
`s8be`	64	Yes	Big	-9223372036854775808	9223372036854775807

Floating point number specification also follows the general pattern: f(4|8)(le|be)

First letter — f — specifies floating point type
Second group — 4 or 8 — specifies width of an integer in bytes
Third group — le or be — specifies little-endian or big-endian encoding respectively; it can be omitted if default endianness specified in meta.endian in file description.

The general format of float follows IEEE 754 standard.

The full list of possible floating point type is thus:

`type`	Width, bits	Endianness	Mantissa bits	Exponents bits
`f4be`	32	Big	24	8
`f4le`	32	Little	24	8
`f8be`	64	Big	53	11
`f8le`	64	Little	53	11