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| author | Dmitry Shulga <dmitry.shulga@mariadb.com> | 2020-11-17 19:23:33 +0700 |
|---|---|---|
| committer | Dmitry Shulga <dmitry.shulga@mariadb.com> | 2020-11-17 19:23:33 +0700 |
| commit | 796f708f85d3b8b68d1aa338dfa60cfea8f3cdac (patch) | |
| tree | eca91d5f538f3a8ba11da184462a1c652e20f95d | |
| parent | f0c990379565748c7faa6a068b992f61d9ceb46c (diff) | |
| download | mariadb-git-796f708f85d3b8b68d1aa338dfa60cfea8f3cdac.tar.gz | |
MDEV-24115 Fix -Wconversion in Timeval::Timeval() on Mac OS Xbb-10.4-MDEV-24115
The data member tv_usec of the struct timeval is declared as suseconds_t
on MacOS. Size of suseconds_t is 4 bytes. On the other hand, size of ulong
is 8 bytes on 64-bit MacOS, so attempt to assign a value of wider type
(usec) to a value (tv_usec) of narrower type leads to error.
| -rw-r--r-- | sql/structs.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sql/structs.h b/sql/structs.h index c47e4802452..28c0cb6e1a2 100644 --- a/sql/structs.h +++ b/sql/structs.h @@ -871,7 +871,13 @@ public: Timeval(my_time_t sec, ulong usec) { tv_sec= sec; - tv_usec= usec; + /* + Since tv_usec is not always of type ulong, cast usec parameter + explicitly to uint to avoid compiler warnings about losing + integer precision. + */ + DBUG_ASSERT(usec < 1000000); + tv_usec= (uint)usec; } explicit Timeval(const timeval &tv) :timeval(tv) |