re: 64 bit - no fundamentals

[noorad]

#define long long int   int64  :   NO good!
what types to use in 64bit ?

[severach]

What makes it no good? Did it end up being 128 bit? In <stdint.h> I see:

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typedef signed long long int64_t;
typedef unsigned long long uint64_t;
In <win/basetsd.h> I see:

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typedef signed __int64 INT64, *PINT64;
typedef unsigned __int64 UINT64, *PUINT64;
LARGE_INTEGER works too but might be too cumbersome. Those all work in a 32 bit environment. For a 64 bit environment INT_PTR, UINT_PTR, and size_t will all be 64 bit too. I see plenty of 64 bit options.

[noorad]

 many thanks - but what beginner is looking in ..... std  where ?
mfg lurt

[severach]

Those files are in c:\Program Files\PellesC\Include\

__int64 and long long are in the help under "int types."