How do I write a 64 bit value, example
0xffffffffffffffff to a buffer?
My code:
sprintf( buffer , "%016llx\n" , 0xffffffffffffffff ) ;
This gives me output in buffer as 0x00000000ffffffff.
An earlier thread suggested using %016llx or %016llX with
printf to actually print out the output.
But this does not seem to work with the above function.
Please help.
Thanks,
Rahul.
You need to explicitly make the constant an unsigned long longCode:sprintf( buffer , "%016llx\n", 0xffffffffffffffffull ) ;
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
Perhaps this?Code:#include <stdio.h> #include <stdint.h> #include <inttypes.h> int main( void ) { unsigned long long value = -1ULL; printf("value = 0x%016"PRIX64"\n", value); return 0; } /* my output value = 0xFFFFFFFFFFFFFFFF */
7. It is easier to write an incorrect program than understand a correct one.
40. There are two ways to write error-free programs; only the third one works.*
