1 #include "list.h"

     2 

     3 #include <string.h>

     4 #include "util.h"

     5 #include "logging.h"

     6 

     7 void *flib_list_insert(void *list, int *listSizePtr, size_t elementSize, void *elementPtr, int pos) {

     8 	void *result = NULL;

     9 	if(!listSizePtr || !elementPtr || pos < 0 || pos > *listSizePtr) {

    10 		flib_log_e("Invalid parameter in flib_list_insert");

    11 	} else {

    12 		unsigned char *newList = flib_realloc(list, ((*listSizePtr)+1)*elementSize);

    13 		if(newList) {

    14 			memmove(newList + (pos+1)*elementSize, newList + pos*elementSize, ((*listSizePtr)-pos)*elementSize);

    15 			memmove(newList + pos*elementSize, elementPtr, elementSize);

    16 			(*listSizePtr)++;

    17 			result = newList;

    18 		}

    19 	}

    20 	return result;

    21 }

    22 

    23 void *flib_list_delete(void *list, int *listSizePtr, size_t elementSize, int pos) {

    24 	void *result = NULL;

    25 	if(!listSizePtr || pos < 0 || pos >= *listSizePtr) {

    26 		flib_log_e("Invalid parameter in flib_list_delete");

    27 	} else {

    28 		unsigned char *charList = list;

    29 		memmove(charList + (pos*elementSize), charList + (pos+1)*elementSize, (*listSizePtr-(pos+1))*elementSize);

    30 		(*listSizePtr)--;

    31 

    32 		// If the realloc fails, just keep using the old buffer...

    33 		size_t newCharSize = (*listSizePtr)*elementSize;

    34 		void *newList = flib_realloc(list, newCharSize);

    35 		if(newList || newCharSize==0) {

    36 			result = newList;

    37 		} else {

    38 			result = list;

    39 		}

    40 	}

    41 	return result;

    42 }