diff options
Diffstat (limited to 'mysys/mf_sort.c')
-rw-r--r-- | mysys/mf_sort.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/mysys/mf_sort.c b/mysys/mf_sort.c new file mode 100644 index 00000000..24e875b8 --- /dev/null +++ b/mysys/mf_sort.c @@ -0,0 +1,42 @@ +/* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. + + 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 + the Free Software Foundation; version 2 of the License. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */ + +/* Sort of string pointers in string-order with radix or qsort */ + +#include "mysys_priv.h" +#include <m_string.h> + +void my_string_ptr_sort(uchar *base, uint items, size_t size) +{ +#if INT_MAX > 65536L + uchar **ptr=0; + + if (radixsort_is_appliccable(items, size) && + (ptr= (uchar**) my_malloc(PSI_NOT_INSTRUMENTED, + items * sizeof(char*),MYF(0)))) + { + radixsort_for_str_ptr((uchar**) base,items,size,ptr); + my_free(ptr); + } + else +#endif + { + if (size && items) + { + my_qsort2(base,items, sizeof(uchar*), get_ptr_compare(size), + (void*) &size); + } + } +} |