Delphi

Size/Values

C++ implementation

Implementation

ShortInt

8-bit integer

signed char

typedef

SmallInt

16-bit integer

short

typedef

LongInt

32-bit integer

int

typedef

Byte

8-bit unsigned integer

unsigned char

typedef

Word

16-bit unsigned integer

unsigned short

typedef

Integer

32-bit integer

int

typedef

Cardinal

32-bit unsigned integer

unsigned int

typedef

Boolean

true/false

bool

typedef

ByteBool

true/false or 8-bit unsigned integer

unsigned char

typedef

WordBool

true/false or 16-bit unsigned integer

unsigned short

typedef

LongBool

true/false or 32-bit unsigned integer

BOOL (WinAPI)

typedef

AnsiChar

8-bit unsigned character

char

typedef

WideChar

word-sized Unicode character

wchar_t

typedef

Char

8-bit unsigned character

char

typedef

AnsiString

Delphi AnsiString

AnsiString

class

String[n]

old style Delphi string, n = 1..255 bytes

SmallString<n>

template class

ShortString

old style Delphi string, 255 bytes

SmallString<255>

typedef

String

Delphi AnsiString

AnsiString

typedef

Single

32-bit floating point number

float

typedef

Double

64-bit floating point number

double

typedef

Extended

80-bit floating point number long

double

typedef

Real

32-bit floating point number

doubl e

typedef

Pointer

32-bit generic pointer

void *

typedef

PChar

32-bit pointer to characters

unsigned char *

typedef

PAnsiChar

32-bit pointer to ANSI characters

unsigned char *

typedef

Comp

64-bit floating point number

Comp

class

String[n]

old style Delphi string

SmallString<n>

template class

OleVariant

OLE variant value

OleVariant

class