size of Record(10分)

W

wlmmlw

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2002-12-20

• #1

{$A+}
TData = record
pre: Int64

next: Int64;
dataType: word;
dataSize: word

freeSize: word

end;
sizeof(TData) = ?

 

影

影 子

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2002-12-20

• #2

看看packed的帮助
type
TData = packed record
pre: Int64;
next: Int64;
dataType: word;
dataSize: word;
freeSize: word;
end;

 

Z

zw84611

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2002-12-20

• #3

TData = packed record
pre: Int64;
next: Int64;
dataType: word;
dataSize: word;
freeSize: word;
end;

sizeof(TData) = ?

 

X

xeen

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2002-12-20

• #4

编译器会按四个字节对齐，补上两个字节.
TData = record
pre: Int64

next: Int64;
dataType: word;
dataSize: word

freeSize: word

unused: word;
end;
sizeof(TData) = 24

 

C

cjsam

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2002-12-20

• #5

{$A-}
TData = record
pre: Int64

next: Int64;
dataType: word;
dataSize: word

freeSize: word

end;
{$A-}

TData1 = packed record
pre: Int64;
next: Int64;
dataType: word;
dataSize: word;
freeSize: word;
end;
好象。
sizeof(Tdata)=sizeof(Tdata1)

 

W

wlmmlw

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2002-12-20

• #6

多人接受答案了。