diff options
Diffstat (limited to 'mysys')
| -rw-r--r-- | mysys/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | mysys/mf_iocache2.c | 4 | ||||
| -rw-r--r-- | mysys/ptr_cmp.c | 7 |
3 files changed, 10 insertions, 2 deletions
diff --git a/mysys/CMakeLists.txt b/mysys/CMakeLists.txt index eb7f75ed6a8..704ddf8bb49 100644 --- a/mysys/CMakeLists.txt +++ b/mysys/CMakeLists.txt @@ -1,4 +1,5 @@ # Copyright (c) 2006, 2014, Oracle and/or its affiliates +# Copyright (c) 2009, 2018, MariaDB Corporation # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by diff --git a/mysys/mf_iocache2.c b/mysys/mf_iocache2.c index 2499094037d..fa3b6e672d7 100644 --- a/mysys/mf_iocache2.c +++ b/mysys/mf_iocache2.c @@ -1,4 +1,5 @@ -/* Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved. +/* Copyright (c) 2000, 2018, Oracle and/or its affiliates. + Copyright (c) 2009, 2018, MariaDB Corporation This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -491,4 +492,3 @@ process_flags: err: return (size_t) -1; } - diff --git a/mysys/ptr_cmp.c b/mysys/ptr_cmp.c index 6d853a8db25..add92edd713 100644 --- a/mysys/ptr_cmp.c +++ b/mysys/ptr_cmp.c @@ -52,6 +52,11 @@ static int ptr_compare_0(size_t *compare_length, uchar **a, uchar **b); static int ptr_compare_1(size_t *compare_length, uchar **a, uchar **b); static int ptr_compare_2(size_t *compare_length, uchar **a, uchar **b); static int ptr_compare_3(size_t *compare_length, uchar **a, uchar **b); +static int degenerate_compare_func(size_t *compare_length, uchar **a, uchar **b) +{ + DBUG_ASSERT(*compare_length == 0); + return 0; +} #endif /* __sun */ /* Get a pointer to a optimal byte-compare function for a given size */ @@ -64,6 +69,8 @@ qsort2_cmp get_ptr_compare (size_t size __attribute__((unused))) #else qsort2_cmp get_ptr_compare (size_t size) { + if (size == 0) + return (qsort2_cmp) degenerate_compare_func; if (size < 4) return (qsort2_cmp) ptr_compare; switch (size & 3) { |