ucx: src/list.c@55cc3b373c5e

     1 /*

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

     3  *

     4  * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.

     5  *

     6  * Redistribution and use in source and binary forms, with or without

     7  * modification, are permitted provided that the following conditions are met:

     8  *

     9  *   1. Redistributions of source code must retain the above copyright

    10  *      notice, this list of conditions and the following disclaimer.

    11  *

    12  *   2. Redistributions in binary form must reproduce the above copyright

    13  *      notice, this list of conditions and the following disclaimer in the

    14  *      documentation and/or other materials provided with the distribution.

    15  *

    16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

    17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE

    20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

    23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

    26  * POSSIBILITY OF SUCH DAMAGE.

    27  */

    29 #include "cx/list.h"

    31 #include <string.h>

    33 void cxListDestroy(CxList *list) {

    34     switch (list->content_destructor_type) {

    35         case CX_DESTRUCTOR_SIMPLE: {

    36             CxIterator iter = cxListBegin(list);

    37             cx_foreach(void*, elem, iter) {

    38                 list->simple_destructor(elem);

    39             }

    40             break;

    41         }

    42         case CX_DESTRUCTOR_ADVANCED: {

    43             CxIterator iter = cxListBegin(list);

    44             cx_foreach(void*, elem, iter) {

    45                 list->advanced_destructor.func(list->advanced_destructor.data, elem);

    46             }

    47             break;

    48         }

    49         case CX_DESTRUCTOR_NONE:

    50             break; // nothing

    51     }

    53     list->cl->destructor(list);

    54     cxFree(list->allocator, list);

    55 }

    57 int cxListCompare(

    58         CxList const *list,

    59         CxList const *other

    60 ) {

    61     if (list->cl->compare == other->cl->compare) {

    62         // same compare function, lists are compatible

    63         return list->cl->compare(list, other);

    64     } else {

    65         // different compare functions, use iterator

    66         if (list->size == other->size) {

    67             CxIterator left = cxListBegin(list);

    68             CxIterator right = cxListBegin(other);

    69             for (size_t i = 0; i < list->size; i++) {

    70                 void *leftValue = cxIteratorCurrent(left);

    71                 void *rightValue = cxIteratorCurrent(right);

    72                 int d = list->cmpfunc(leftValue, rightValue);

    73                 if (d != 0) {

    74                     return d;

    75                 }

    76                 cxIteratorNext(left);

    77                 cxIteratorNext(right);

    78             }

    79             return 0;

    80         } else {

    81             return list->size < other->size ? -1 : 1;

    82         }

    83     }

    84 }

    86 CxMutIterator cxListMutIterator(

    87         CxList *list,

    88         size_t index

    89 ) {

    90     CxIterator it = list->cl->iterator(list, index);

    91     it.base.mutating = true;

    93     // we know the iterators share the same memory layout

    94     CxMutIterator iter;

    95     memcpy(&iter, &it, sizeof(CxMutIterator));

    96     return iter;

    97 }

Mercurial > hg > ucx / file revision