| Bug #90853 | warning: taking the max of a value and unsigned zero is always equal to the othe | ||
|---|---|---|---|
| Submitted: | 14 May 2018 6:19 | Modified: | 14 May 2018 9:57 |
| Reporter: | Shane Bester (Platinum Quality Contributor) | Email Updates: | |
| Status: | Duplicate | Impact on me: | |
| Category: | MySQL Server: Compiling | Severity: | S3 (Non-critical) |
| Version: | 5.7.22 | OS: | FreeBSD (11.1) |
| Assigned to: | CPU Architecture: | Any | |
[14 May 2018 9:57]
MySQL Verification Team
Already filed as https://bugs.mysql.com/bug.php?id=89419
[14 May 2018 10:04]
MySQL Verification Team
fixed in 8.0 by Bug#24796251 ADD DEBUG CHECKS TO JOIN_CACHE
Description: During compile on freebsd, saw a few of these: In file included from ./mysql-5.7.22/sql/sql_optimizer.cc:37: ./mysql-5.7.22/sql/sql_join_buffer.h:347:12: warning: taking the max of a value and unsigned zero is always equal to the other value [-Wmax-unsigned-zero] return std::max<ulong>(buff_size-(end_pos-buff)-aux_buff_size, 0UL); ^~~~~~~~~~~~~~~ ~~~ ./mysql-5.7.22/sql/sql_join_buffer.h:815:12: warning: taking the max of a value and unsigned zero is always equal to the other value [-Wmax-unsigned-zero] return std::max(static_cast<ulong>(last_key_entry - end_pos-aux_buff_size), ^~~~~~~~ Note sure if this is specific to freebsd or not, but the warning makes sense anyway. How to repeat: compile...