Am Montag, 20. Januar 2020 20:05:36 UTC+1 schrieb kornel:
>
> Thanks, but the buffer size is 10. How can 16 digits fit there?
> You meant 6 digits probably?
>
No, I meant 16. The warning was in line 525:
std::sprintf(fmt,"%%.%df",digits);
Here only the format string is build. So for 16 digits fmt becomes "%.16f".
This is shorter than the 10 bytes of fmt.
(The warning above the overflow would result when digits>=1000000, because
then fmt would become "%.1000000f" which will not fit into char fmt[10].)
The actual conversion of the double to string is done in line 530ff:
#ifdef _MSC_VER
_snprintf (c, 1023, fmt, d);
#else
snprintf (c, 1023, fmt, d);
#endif
Here we have a buffer with length 1024.
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