long long int and ULARGE_INTEGER

[blakkcooper]

What is the difference between unsigned long long int and ULARGE_INTEGER? And is ULARGE_INTEGER the same as __int64?

[olivthill2]

unsigned long long int, ULARGE_INTEGER, and unsigned __int64 are integers stored in 64 bits.
FYI, there are also UINT64, ULONGLONG and LONG64, which are also integers stored in 64 bits.

ULARGE_INTEGER is a structure:

typedef union _ULARGE_INTEGER {
struct {
DWORD LowPart;
DWORD HighPart;
} ;
struct {
DWORD LowPart;
DWORD HighPart;
} u;
ULONGLONG QuadPart;
}ULARGE_INTEGER, *PULARGE_INTEGER;
(source: http://msdn.microsoft.com/en-us/libr...42(VS.85).aspx)

long long is at the source of several other types:

#define __int64 long long
typedef __int64 LONG64, *PLONG64;
typedef __int64 INT64, *PINT64;
typedef unsigned __int64 UINT64, *PUINT64;
(source: basestd.h)

Myself, when I program for Windows, I like to use UINT64 and INT64.