Move callback functions into the same file

[TD_C.git] / TP_13 / exo1 / lib / array.c

diff --git a/TP_13/exo1/lib/array.c b/TP_13/exo1/lib/array.c
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..2077b3fde188848225829cb065ee2d01e8bdaeae 100644 (file)
--- a/TP_13/exo1/lib/array.c
+++ b/TP_13/exo1/lib/array.c
@@ -0,0 +1,81 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "array.h"
+
+int* create_tab(int tab[], unsigned tab_size) {
+    tab = (int*)malloc(sizeof(int) * tab_size);
+    if (tab != NULL) {
+        /* initialize to zero the integer array */
+        for (unsigned i = 0; i < tab_size; i++) {
+            tab[i] = 0;
+        }
+    }
+    return tab;
+}
+
+void free_tab(int tab[]) {
+    if (!tab)
+        free(tab);
+}
+
+/* we suppose both tabs are already created */
+static void copy_tab(int src_tab[], int dest_tab[], unsigned src_tab_size, unsigned index_offset) {
+    /* FIXME: I think it's worth doing some sanity checks on the array size:
+     * dest_tab_size >= src_tab_size */
+    if (src_tab == NULL || dest_tab == NULL) {
+        printf("Please ensure you have created both arrays beforehand\n");
+        return;
+    }
+    for (unsigned i = 0; i < src_tab_size; i++) {
+        dest_tab[i + index_offset] = src_tab[i];
+    }
+}
+
+/* one must free the two source tabs in case they will be unused after to concatenation  */
+int* concat_tab(int tab1[], unsigned tab_size1, int tab2[], unsigned tab_size2) {
+    int* tab_dest = NULL;
+    tab_dest = create_tab(tab_dest, tab_size1 + tab_size2);
+
+    copy_tab(tab1, tab_dest, tab_size1, 0);
+    copy_tab(tab2, tab_dest, tab_size2, tab_size1);
+    return tab_dest;
+}
+
+int* resize_tab(int tab[], unsigned old_tab_size, unsigned new_tab_size) {
+    tab = (int*)realloc(tab, sizeof(int) * new_tab_size);
+    /* zero by default the added cells */
+    if (old_tab_size < new_tab_size) {
+        for (unsigned i = old_tab_size; i < new_tab_size; i++) {
+            tab[i] = 0;
+        }
+    }
+    return tab;
+}
+
+/* number of occurences of an element in an unsorted array  */
+unsigned count_tab_element(int tab[], unsigned tab_size, int element) {
+    unsigned el_count = 0;
+
+    for (unsigned i = 0; i < tab_size; i++) {
+        if (tab[i] == element) {
+            el_count++;
+        }
+    }
+    return el_count;
+}
+
+unsigned count_tab_criteria(int tab[], unsigned tab_size, c_criteria_cb c_criteria) {
+    unsigned cr_count = 0;
+
+    for (unsigned i = 0; i < tab_size; i++) {
+        if (c_criteria(tab[i])) {
+            cr_count++;
+        }
+    }
+    return cr_count;
+}
+
+void sort_tab(int tab[], unsigned tab_size, s_criteria_cb sort_criteria) {
+    sort_bubble_array(tab, tab_size, sort_criteria);
+}