From: Jérôme Benoit <jerome.benoit@piment-noir.org>
Date: Tue, 14 Feb 2017 21:35:05 +0000 (+0100)
Subject: Implement exo1.c completly:
X-Git-Url: https://git.piment-noir.org/?p=TD_C.git;a=commitdiff_plain;h=b77c2eee8228cc599196120657e503e4146be4b1

Implement exo1.c completly:

* Add user prompt for the array values;
* Optimize sortArray() values inversion loop;
* Beautify a bit the terminal output.

Signed-off-by: Jérôme Benoit <jerome.benoit@piment-noir.org>
---

diff --git a/exo1/exo1.c b/exo1/exo1.c
index 822d73f..8b44ea4 100644
--- a/exo1/exo1.c
+++ b/exo1/exo1.c
@@ -1,12 +1,13 @@
 #include <stdio.h>
 #include <stdbool.h>
 
+//FIXME: Comment the code !!!
 
-void promptValue(const char* msg, int* addr) {
-    puts(msg);
+void promptValue(int* addr) {
     scanf("%d", addr);
 }
 
+// The efficience of this swap alternative is debatable ..
 void xorSwap (int *v1, int *v2) {
     if (v1 != v2) {
         *v1 ^= *v2;
@@ -25,26 +26,46 @@ void swap(int* v1, int* v2) {
 
 void displayArray(int* array, int count) {
     for (int i = 0; i < count; i++) {
-        printf("Value in array index %d = %d\n", i, array[i]);
+        printf("Value in array at index[%d]= %d\n", i, array[i]);
     }
 }
 
 bool sortFirst(int* array, int length) {
+    bool rt = false;
     for (int i = 0; i < length-1; i++) {
         if (array[i] > array[i+1]) {
             swap(&array[i], &array[i+1]);
-            return true;
+            //xorSwap(&array[i], &array[i+1]);
+            rt = true;
         }
     }
-    return false;
+    return rt;
+}
+
+void sortArray(int* array, int length) {
+    bool rt; 
+    do {
+        rt = sortFirst(array, length);
+    } while (rt);
+
 }
 
 int main() {
-    int array[5];
-    for (int i = 0; i < 5; i++) {
-        promptValue("Valeur ?", &array[i]);
+    int tab_length = 10;
+    // GCC do not like variable sized array, even with the size variable properly initialized
+    int tab[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+   
+    for (int i = 0; i < tab_length; i++) {
+        printf("Enter integer value at array's index[%d]? ", i);
+        promptValue(&tab[i]);
     }
-    displayArray(array, 5);
+
+    printf("\nView array content unsorted:\n");
+    displayArray(tab, tab_length);
+    sortArray(tab, tab_length);
+    printf("\nNow, sorting the array...\n");
+    printf("\nView array content sorted:\n");
+    displayArray(tab, tab_length);
 
     return 0;
 }