kernel/git - git - PowerEL Git System

Tree: 9af6cb88b6

Author	SHA1	Message	Date
René Scharfe	0f1eb7d6e9	mergesort: remove llist_mergesort() Now that all of its callers are gone, remove llist_mergesort(). Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>	3 years ago
René Scharfe	318051eaeb	mergesort: add macros for typed sort of linked lists Add the macros DECLARE_LIST_SORT and DEFINE_LIST_SORT for building type-specific functions for sorting linked lists. The generated function expects a typed comparison function. The programmer provides full type information (no void pointers). This allows the compiler to check whether the comparison function matches the list type. It can also inline the "next" pointer accessor functions and even the comparison function to get rid of the calling overhead. Also provide a DECLARE_LIST_SORT_DEBUG macro that allows executing custom code whenever the accessor functions are used. It's intended to be used by test-mergesort, which counts these operations. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>	3 years ago
Junio C Hamano	7365c95d2d	mergesort: rename it to llist_mergesort() Even though the function is generic enough, <anything>sort() inherits connotations from the standard function qsort() that sorts an array. Rename it to llist_mergesort() and describe the external interface in its header file. This incidentally avoids name clashes with mergesort() some platforms declare in, and contaminate user namespace with, their <stdlib.h>. Reported-by: Brian Gernhardt Signed-off-by: Junio C Hamano <gitster@pobox.com>	13 years ago
René Scharfe	0db71e0fa9	add mergesort() for linked lists This adds a generic bottom-up mergesort implementation for singly linked lists. It was inspired by Simon Tatham's webpage on the topic[1], but not so much by his implementation -- for no good reason, really, just a case of NIH. [1] http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>	13 years ago