error compiling "typedef unsigned long long u64;"

[kender_a]

Long time ago a guy (who had since quit the company) wrote a code for some Atmel microprocessor running Linux, that had the following typedef:

 typedef unsigned long long u64;

It compiles just fine for the Atmel.
I want to add some of that code (which, I think, doesn’t depend on hardware) to my Windows application that I’m developing in VC++ 6.0. Unfortunately, VC doesn’t want to compile it and gives me the following error:

c:\coreutils\receiver\inx\include\types.h(29) : error C2632: 'long' followed by 'long' is illegal

I wonder if VC can digest this typedef at all?

[RogerGarrett]

Try ULONGLONG instead of "unsigned long long"

[MrViggy]

You can also try:

unsigned __int64

Just be aware that whatever compiler/platform the original code was compiled on might not know about an "unsigned __int64". You might have to '#ifdef' the typedef:

#ifdef LINUX
typedef unsigned long long u64;
#else
typedef unsigned __int64 u64;
#endif

Viggy