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MS C-compiler: printf and 8 byte hex

 
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Dark Byte
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PostPosted: Mon Jan 23, 2012 7:02 am    Post subject: MS C-compiler: printf and 8 byte hex Reply with quote
I have an 8 byte variable(UINT64) whose bytes exist out of "3b 00 01 80 ff ff ff ff "
How do I use printf to display ffffffff8001003b (%llx and %016llX do not work)

Edit: found it: %I64x
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Jani
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Joined: 29 Dec 2006
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PostPosted: Wed Jan 25, 2012 4:53 am    Post subject: Reply with quote
In case someone accidentally wanders here in the future..

As I told Dark Byte on IRC it's preferable to use %PRIx64 from inttypes.h header if it's available on your compiler (C99?), because displaying 64-bit integers is non-standard. On gcc it expands to %llx and on MSVC to %I64x. But in his case, inttypes wasn't available.
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