| IDA SDK

Variables
Basic type: unknown & void
Type flags

## Detailed Description

BT_UNK and BT_VOID with non-zero type flags can be used in function (and struct) declarations to describe the function arguments or structure fields if only their size is known. They may be used in ida to describe the user input.

In general BT_... bits should not be used alone to describe types. Use BTF_... constants instead.

For struct used also as 'single-field-alignment-suffix' [__declspec(align(x))] with TYPE_MODIF_MASK == TYPE_FULL_MASK.

## Variables
const type_t | BT_UNK = 0x00
| unknown
const type_t | BT_VOID = 0x01
| void
const type_t | BTMT_SIZE0 = 0x00
| BT_VOID - normal void; BT_UNK - don't use
const type_t | BTMT_SIZE12 = 0x10
| size = 1 byte if BT_VOID; 2 if BT_UNK
const type_t | BTMT_SIZE48 = 0x20
| size = 4 bytes if BT_VOID; 8 if BT_UNK
const type_t | BTMT_SIZE128 = 0x30
| size = 16 bytes if BT_VOID; unknown if BT_UNK (IN struct alignment - see below)