c - scanf a big hexadecimal value -


i have issue trying use scanf big hexadecimal num (12 chars) user.

it seems last 8 chars, eg - abffffffff become 0000ffffffff.

this code -

unsigned long long address; scanf("%x",&address); printf("address: %#014x", address);

for input: "abffffffff" output be:

address: 0x0000ffffffff

i have tried playing bit scanf format, no avail.

thank you.

you must use "%llx" both scanf format , printf. see manual page additional details.


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