Re: termios constants should be unsigned

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On 2024-06-12 05:16, Alejandro Colomar wrote:
tcgets.c:53:24:
  error: implicit conversion changes signedness: 'int' to 'tcflag_t' (aka
  'unsigned int') [clang-diagnostic-sign-conversion,-warnings-as-errors]

This is a bug in Clang not glibc, and if you're worried about it I suggest sending a bug report to the Clang folks about the false positive.

Even GCC's -Wsign-conversion, which is at least smart enough to not warn about benign conversions like that, is too often so chatty that it's best avoided.

A lot of this stuff is pedanticism that dates back to the bad old days when the C standard allowed ones' complement and signed magnitude representations of signed integers. Although it can be amusing to worry about that possibility (I know I've done it) it's never been a practical worry, and even the motivation of pedanticism is going away now that C23 requires two's complement.




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