It is an helper, the same symmetrical one we have for Eina_List.

On Tue, Apr 9, 2013 at 7:06 PM, Michael Blumenkrantz
<michael.blumenkra...@gmail.com> wrote:
> I don't see the point of eina_inlist_last given that last is part of the
> inlist struct.
>
>
> On Tue, Apr 9, 2013 at 11:01 AM, Jérémy Zurcher - Enlightenment Git <
> no-re...@enlightenment.org> wrote:
>
>> jeyzu pushed a commit to branch master.
>>
>> commit 2036f7d3447d4e568f2736441c839678da310f22
>> Author: Jérémy Zurcher <jer...@asynk.ch>
>> Date:   Tue Apr 9 12:03:05 2013 +0200
>>
>>     eina: add eina_inlist_first and eina_inlist_last
>>
>>        - both as static inline functions
>>        - test added in eina_inlist_simple
>> ---
>>  ChangeLog                         |  4 ++++
>>  NEWS                              |  2 ++
>>  src/Makefile_Eina.am              |  1 +
>>  src/lib/eina/eina_inline_inlist.x | 46
>> +++++++++++++++++++++++++++++++++++++++
>>  src/lib/eina/eina_inlist.h        | 34 +++++++++++++++++++++++++++++
>>  src/tests/eina/eina_test_inlist.c |  6 +++++
>>  6 files changed, 93 insertions(+)
>>
>> diff --git a/ChangeLog b/ChangeLog
>> index f9734d0..2a8e558 100644
>> --- a/ChangeLog
>> +++ b/ChangeLog
>> @@ -1,3 +1,7 @@
>> +2013-04-09  Jérémy Zurcher (jeyzu)
>> +
>> +        * Eina: Add eina_inlist_first and eina_inlist_last
>> +
>>  2013-04-08  Tom Hacohen
>>
>>          * Evas font: Fix a bug with cluster size calculation with texts
>> ending
>> diff --git a/NEWS b/NEWS
>> index de6a308..ed33eef 100644
>> --- a/NEWS
>> +++ b/NEWS
>> @@ -23,6 +23,8 @@ Additions:
>>       - Add eina_list_shuffle()
>>       - Add eina_file_mkstemp()
>>       - Add eina_log_timing()
>> +     - Add eina_inlist_first
>> +     - Add eina_inlist_last
>>      * Add Cserve2 scalecache support
>>      * ecore_x:
>>       - Add window profile support.
>> diff --git a/src/Makefile_Eina.am b/src/Makefile_Eina.am
>> index d79486b..1080b58 100644
>> --- a/src/Makefile_Eina.am
>> +++ b/src/Makefile_Eina.am
>> @@ -26,6 +26,7 @@ lib/eina/eina_clist.h \
>>  lib/eina/eina_inline_clist.x \
>>  lib/eina/eina_inarray.h \
>>  lib/eina/eina_inlist.h \
>> +lib/eina/eina_inline_inlist.x \
>>  lib/eina/eina_list.h \
>>  lib/eina/eina_file.h \
>>  lib/eina/eina_mempool.h \
>> diff --git a/src/lib/eina/eina_inline_inlist.x
>> b/src/lib/eina/eina_inline_inlist.x
>> new file mode 100644
>> index 0000000..f4cd95e
>> --- /dev/null
>> +++ b/src/lib/eina/eina_inline_inlist.x
>> @@ -0,0 +1,46 @@
>> +/* EINA - EFL data type library
>> + * Copyright (C) 2013 Jérémy Zurcher
>> + *
>> + * This library is free software; you can redistribute it and/or
>> + * modify it under the terms of the GNU Lesser General Public
>> + * License as published by the Free Software Foundation; either
>> + * version 2.1 of the License, or (at your option) any later version.
>> + *
>> + * This library 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
>> + * Lesser General Public License for more details.
>> + *
>> + * You should have received a copy of the GNU Lesser General Public
>> + * License along with this library;
>> + * if not, see <http://www.gnu.org/licenses/>.
>> + */
>> +
>> +#ifndef EINA_INLIST_INLINE_H_
>> +#define EINA_INLIST_INLINE_H_
>> +
>> +static inline Eina_Inlist *
>> +eina_inlist_first(const Eina_Inlist *list)
>> +{
>> +   Eina_Inlist *l;
>> +
>> +   if (!list) return NULL;
>> +
>> +   for (l = (Eina_Inlist*)list; l->prev; l = l->prev);
>> +
>> +   return l;
>> +}
>> +
>> +static inline Eina_Inlist *
>> +eina_inlist_last(const Eina_Inlist *list)
>> +{
>> +   Eina_Inlist *l;
>> +
>> +   if (!list) return NULL;
>> +
>> +   for (l = (Eina_Inlist*)list; l->next; l = l->next);
>> +
>> +   return l;
>> +}
>> +
>> +#endif /* EINA_INLIST_INLINE_H_ */
>> diff --git a/src/lib/eina/eina_inlist.h b/src/lib/eina/eina_inlist.h
>> index 6a318d7..2829967 100644
>> --- a/src/lib/eina/eina_inlist.h
>> +++ b/src/lib/eina/eina_inlist.h
>> @@ -580,6 +580,38 @@ EAPI Eina_Inlist   *eina_inlist_demote(Eina_Inlist
>> *list,
>>                                         Eina_Inlist *item)
>> EINA_ARG_NONNULL(1, 2) EINA_WARN_UNUSED_RESULT;
>>
>>  /**
>> + * @brief Get the first list node in the list.
>> + *
>> + * @param list The list to get the first list node from.
>> + * @return The first list node in the list.
>> + *
>> + * This function returns the first list node in the list @p list. If
>> + * @p list is @c NULL, @c NULL is returned.
>> + *
>> + * This is a O(N) operation (it takes time proportional
>> + * to the length of the list).
>> + *
>> + * @since 1.8
>> + */
>> +static inline Eina_Inlist *eina_inlist_first(const Eina_Inlist *list)
>> EINA_PURE EINA_WARN_UNUSED_RESULT;
>> +
>> +/**
>> + * @brief Get the last list node in the list.
>> + *
>> + * @param list The list to get the last list node from.
>> + * @return The last list node in the list.
>> + *
>> + * This function returns the last list node in the list @p list. If
>> + * @p list is @c NULL, @c NULL is returned.
>> + *
>> + * This is a O(N) operation (it takes time proportional
>> + * to the length of the list).
>> + *
>> + * @since 1.8
>> + */
>> +static inline Eina_Inlist *eina_inlist_last(const Eina_Inlist *list)
>> EINA_PURE EINA_WARN_UNUSED_RESULT;
>> +
>> +/**
>>   * @brief Get the count of the number of items in a list.
>>   *
>>   * @param list The list whose count to return.
>> @@ -825,6 +857,8 @@ EAPI Eina_Inlist *eina_inlist_sort(Eina_Inlist *head,
>> Eina_Compare_Cb func);
>>    for (it = NULL, it = (list ? _EINA_INLIST_CONTAINER(it, list->last) :
>> NULL); \
>>         it; it = (EINA_INLIST_GET(it)->prev ? _EINA_INLIST_CONTAINER(it,
>> EINA_INLIST_GET(it)->prev) : NULL))
>>
>> +#include "eina_inline_inlist.x"
>> +
>>  /**
>>   * @}
>>   */
>> diff --git a/src/tests/eina/eina_test_inlist.c
>> b/src/tests/eina/eina_test_inlist.c
>> index 7d29b37..46257c8 100644
>> --- a/src/tests/eina/eina_test_inlist.c
>> +++ b/src/tests/eina/eina_test_inlist.c
>> @@ -86,6 +86,7 @@ _eina_test_inlist_build(int i)
>>  START_TEST(eina_inlist_simple)
>>  {
>>     Eina_Inlist *lst = NULL;
>> +   Eina_Inlist *tmpl = NULL;
>>     Eina_Test_Inlist *tmp;
>>     Eina_Test_Inlist *prev;
>>     int i = 0;
>> @@ -285,6 +286,11 @@ START_TEST(eina_inlist_simple)
>>     lst = bkp;
>>  #endif
>>
>> +   tmpl = eina_inlist_last(lst);
>> +   fail_if(tmpl == lst);
>> +   tmpl = eina_inlist_first(tmpl);
>> +   fail_if(tmpl != lst);
>> +
>>     tmp = EINA_INLIST_CONTAINER_GET(lst, Eina_Test_Inlist);
>>     lst = eina_inlist_demote(lst, lst);
>>     fail_if(EINA_INLIST_CONTAINER_GET(lst, Eina_Test_Inlist) == tmp);
>>
>> --
>>
>>
>> ------------------------------------------------------------------------------
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> ------------------------------------------------------------------------------
> Precog is a next-generation analytics platform capable of advanced
> analytics on semi-structured data. The platform includes APIs for building
> apps and a phenomenal toolset for data science. Developers can use
> our toolset for easy data analysis & visualization. Get a free account!
> http://www2.precog.com/precogplatform/slashdotnewsletter
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--
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Precog is a next-generation analytics platform capable of advanced
analytics on semi-structured data. The platform includes APIs for building
apps and a phenomenal toolset for data science. Developers can use
our toolset for easy data analysis & visualization. Get a free account!
http://www2.precog.com/precogplatform/slashdotnewsletter
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