TP_13/exo1/lib/io.c

   1 #include <stdio.h>
   2 #include <stdbool.h>
   3
   4 #include "io.h"
   5 #include "array.h"
   6 #include "utils.h"
   7
   8 int prompt_value(const char* msg, int* result) {
   9     puts(msg);
  10     int retVal = scanf("%d", result);
  11     return (retVal == 1) ? 0 : 1;
  12 }
  13
  14 int* prompt_array(int array[], unsigned* size) {
  15     int errno = prompt_value("Taille du tableau?", (int*)size);
  16     array = create_tab(array, *size);
  17     for (unsigned i = 0; i < *size; i++) {
  18        errno += prompt_value("Valeur?", &array[i]);
  19     }
  20     /* error might have occured */
  21     handle_prompt_error(errno);
  22     return array;
  23 }
  24
  25 void display_choice_menu() {
  26     printf("\n=== Menu ===\n\n");
  27     printf("1) Saisir puis concatener un autre tableau.\n");
  28     printf("2) Trier le tableau.\n");
  29     printf("3) Afficher le tableau.\n");
  30     printf("4) Compter le nombre d'occurence d'un entier dans le tableau.\n");
  31     printf("5) Quitter.\n");
  32 }
  33
  34 int* do_concat(int array[], unsigned* size) {
  35     int* tab_to_concat = NULL;
  36     unsigned tab_to_concat_size = 0;
  37     printf("\n=== Saisie d'un tableau ===\n\n");
  38     tab_to_concat = prompt_array(tab_to_concat, &tab_to_concat_size);
  39     int* tab_concat = concat_tab(array, *size, tab_to_concat, tab_to_concat_size);
  40     *size += tab_to_concat_size;
  41     free_tab(array);
  42     free_tab(tab_to_concat);
  43     return tab_concat;
  44 }
  45
  46 void do_sort(int array[], unsigned size) {
  47     int errno = 0;
  48     int choice = 0;
  49     bool done = false;
  50     criteria_cb criteria;
  51
  52     printf("\n=== Menu de tri ===\n\n");
  53     printf("1) Croissant.\n");
  54     printf("2) Decroissant.\n");
  55     printf("3) Croissant pairs en premier.\n");
  56     printf("4) Croissant impairs en premier.\n");
  57     do {
  58         errno = prompt_value("Choix?", &choice);
  59         handle_prompt_error(errno);
  60         done = true;
  61         if (1 > choice || 4 < choice) {
  62             printf("\nFaire un choix compris entre 1 et 4\n");
  63             done = false;
  64         }
  65     } while (!done);
  66     switch (choice) {
  67         case 1:
  68             criteria = ascending;
  69             break;
  70         case 2:
  71             criteria = descending;
  72             break;
  73         case 3:
  74             criteria = ascending_and_even;
  75             break;
  76         case 4:
  77             criteria = ascending_and_odd;
  78             break;
  79         default:
  80             criteria = ascending;
  81             break;
  82     }
  83     sort_tab(array, size, criteria);
  84 }
  85
  86 void do_count(int array[], unsigned size) {
  87     int errno = 0;
  88     int search_value = 0;
  89
  90     errno = prompt_value("\nValeur a chercher?", &search_value);
  91     handle_prompt_error(errno);
  92     printf("La valeur %d est presente %d fois dans le tableau\n", search_value, count_tab_element(array, size, search_value));
  93 }
  94
  95 void display_array(int array[], unsigned size) {
  96     if (array != NULL) {
  97         printf("\n--array begin--\n");
  98         for (unsigned i = 0; i < size; i++) {
  99             printf("value in array at index[%d]=%d\n", i, array[i]);
 100         }
 101         printf("--array end--\n");
 102     } else {
 103         printf("\n--array NULL--\n");
 104     }
 105 }