Built-in Types

Integer Types

Device Monitoring Studio natively supports the following integer types:

Type Name	Other Valid Names	Typedefs in stddefs.h	Description	Range
`bool`	N/A	N/A	One-byte boolean value. Displayed as “true” and “false”.	N/A
`char`	`signed char`	CHAR, int8, __int8	8-bit signed character	-2⁷ to 2⁷ - 1
`wchar_t`	N/A	`WCHAR`	16-bit UNICODE character	0 to 2¹⁶ - 1
`unsigned char`	N/A	`UCHAR`, `BYTE`, `uint8`	8-bit unsigned character	0 to 2⁸ - 1
`short`	`signed short`, `short int`, `signed short int`	`SHORT`, `int16`, `__int16`	16-bit signed integer	-2¹⁵ to 2¹⁵ - 1
`unsigned short`	`unsigned short int`	`USHORT`, `WORD`, `uint16`	16-bit unsigned integer	0 to 2¹⁶ - 1
`int`	`signed int`, `signed`	`INT`, `int32`, `__int32`	32-bit signed integer	-2³¹ to 2³¹ - 1
`unsigned int`	`unsigned`	`UINT`, `uint32`	32-bit unsigned integer	0 to 2³² - 1
`long`	`signed long`, `long int`, `signed long int`	`LONG`	32-bit signed integer	-2³¹ to 2³¹ - 1
`unsigned long`	`unsigned long int`	`ULONG`, `DWORD`	32-bit unsigned integer	0 to 2³² - 1
`__int64`	N/A	`LONGLONG`, `int64`	64-bit signed integer	-2⁶³ to 2⁶³ - 1
`unsigned __int64`	N/A	`ULONGLONG`, `FILETIME`, `uint64`	64-bit unsigned integer	0 to 2⁶⁴ - 1

Type Modifiers

Two modifiers, little_endian and big_endian may be used to change the default byte ordering of a type. They may be used directly in declaring fields:

struct A
{
    big_endian short value;
};

or in typedef declaration to create a new type:

typedef big_endian short b_short;

Note that #pragma byte_order directive may still be used to change default byte ordering for the rest of a scope. If little_endian or big_endian modifier is present, it always overwrites the current default.

Floating-Point Types

Device Monitoring Studio natively supports the following floating-point types:

Type Name	Description	Size, in Bytes	Range
`float`	Single-precision floating-point type, according to IEEE 754-1985	4	3.4∙10±³⁸ (7 digits)
`double`	Double-precision floating-point type, according to IEEE 754-1985	8	1.7∙10±³⁰⁸ (15 digits)

String Types

Device Monitoring Studio natively supports the following string types:

Type Name	Description
`string`	Null-terminated ANSI string (each character occupies single byte).
`wstring`	Null-terminated UNICODE string (each character occupies two bytes).