Extended Integer Types: __int8, __int16, __int32, __int64

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Keyword Extensions

Description

You can specify the size for integer types (number of bits occupied in memory).

You must use the appropriate suffix (i16, ui32, and so on) using extended integer constants.

Extended integer types

Type Suffix in constants Example Storage

__int8

i8

__int8 c = 127i8;

8 bits

unsigned __int8

ui8

unsigned __int8 c = 240ui8;

8 bits

__int16

i16

__int16 s = 32767i16;

16 bits

unsigned __int16

ui16

unsigned __int16 s = 64532ui16;

16 bits

__int32

i32

__int32 i = 123456789i32;

32 bits

unsigned __int32

ui32

unsigned __int32 i = 223456789ui32;

32 bits

__int64

i64

__int64 big = 12345654321i64;

64 bits

unsigned __int64

ui64

unsigned __int64 hugeInt = 1234567887654321ui64;

64 bits

See Also