UINT64 behavior VC6 C++

[uli2000]

Hi, the VC6 compiler gives me problems: const UINT64 a = 0x0000000080000000; results in just that, however const UINT64 b = a << 1 results in 0x0000000000000000 !!!! What am I doing wrong ? Is there any way to force b into the required 0x0000000100000000 thanks, Uli2000

[Chris Losinger]

this works fine for me (VC6-sp5). #include "stdafx.h" #include int main(int argc, char* argv[]) { const UINT64 a = 0x0000000080000000; const UINT64 b = a << 1; printf("%I64x\n%I64x\n", a, b); return 0; } 80000000 100000000

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[uli2000]

Thank you for your answer. Sorry, I should have mentioned that I try to do this in a header file. In in function inside cpp file it works ok. Also, as a global variable it does not work. Maybe you could try that. Thanks, uli