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Code

Ordered contact list

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This commit is contained in:
James Booth 2012-03-10 21:15:30 +00:00
parent 4f82ece2d3
commit e568c58824
2 changed files with 36 additions and 20 deletions
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17
contact_list.c
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@ -100,12 +100,27 @@ int contact_list_add(const char * const name, const char * const show,
while(curr) {
contact_t *curr_contact = curr->contact;
if (strcmp(curr_contact->name, name) == 0) {
// insert
if (strcmp(curr_contact->name, name) > 0) {
if (prev) {
struct _contact_node_t *new = _make_contact_node(name, show, status);
new->next = curr;
prev->next = new;
} else {
struct _contact_node_t *new = _make_contact_node(name, show, status);
new->next = _contact_list;
_contact_list = new;
}
return 0;
// update
} else if (strcmp(curr_contact->name, name) == 0) {
_destroy_contact(curr->contact);
curr->contact = _new_contact(name, show, status);
return 0;
}
// move on
prev = curr;
curr = curr->next;
}

39
test_contact_list.c
View File

@ -1,4 +1,5 @@
#include <stdio.h>
#include <string.h>
#include <head-unit.h>
#include "contact_list.h"
@ -43,8 +44,8 @@ static void first_and_second_elements_correct(void)
contact_list_add("James", NULL, NULL);
contact_list_add("Dave", NULL, NULL);
contact_list_t *list = get_contact_list();
contact_t *james = list->contacts[0];
contact_t *dave = list->contacts[1];
contact_t *dave = list->contacts[0];
contact_t *james = list->contacts[1];
assert_string_equals("James", james->name);
assert_string_equals("Dave", dave->name);
@ -53,8 +54,8 @@ static void first_and_second_elements_correct(void)
static void contains_three_elements(void)
{
contact_list_add("James", NULL, NULL);
contact_list_add("Dave", NULL, NULL);
contact_list_add("Bob", NULL, NULL);
contact_list_add("Dave", NULL, NULL);
contact_list_t *list = get_contact_list();
assert_int_equals(3, list->size);
@ -62,13 +63,13 @@ static void contains_three_elements(void)
static void first_three_elements_correct(void)
{
contact_list_add("James", NULL, NULL);
contact_list_add("Dave", NULL, NULL);
contact_list_add("Bob", NULL, NULL);
contact_list_add("Dave", NULL, NULL);
contact_list_add("James", NULL, NULL);
contact_list_t *list = get_contact_list();
contact_t *james = list->contacts[0];
contact_t *bob = list->contacts[0];
contact_t *dave = list->contacts[1];
contact_t *bob = list->contacts[2];
contact_t *james = list->contacts[2];
assert_string_equals("James", james->name);
assert_string_equals("Dave", dave->name);
@ -82,9 +83,9 @@ static void add_twice_at_beginning_adds_once(void)
contact_list_add("Dave", NULL, NULL);
contact_list_add("Bob", NULL, NULL);
contact_list_t *list = get_contact_list();
contact_t *james = list->contacts[0];
contact_t *bob = list->contacts[0];
contact_t *dave = list->contacts[1];
contact_t *bob = list->contacts[2];
contact_t *james = list->contacts[2];
assert_int_equals(3, list->size);
assert_string_equals("James", james->name);
@ -99,9 +100,9 @@ static void add_twice_in_middle_adds_once(void)
contact_list_add("James", NULL, NULL);
contact_list_add("Bob", NULL, NULL);
contact_list_t *list = get_contact_list();
contact_t *james = list->contacts[0];
contact_t *bob = list->contacts[0];
contact_t *dave = list->contacts[1];
contact_t *bob = list->contacts[2];
contact_t *james = list->contacts[2];
assert_int_equals(3, list->size);
assert_string_equals("James", james->name);
@ -116,9 +117,9 @@ static void add_twice_at_end_adds_once(void)
contact_list_add("Bob", NULL, NULL);
contact_list_add("James", NULL, NULL);
contact_list_t *list = get_contact_list();
contact_t *james = list->contacts[0];
contact_t *bob = list->contacts[0];
contact_t *dave = list->contacts[1];
contact_t *bob = list->contacts[2];
contact_t *james = list->contacts[2];
assert_int_equals(3, list->size);
assert_string_equals("James", james->name);
@ -179,8 +180,8 @@ static void remove_first_when_three(void)
contact_list_t *list = get_contact_list();
assert_int_equals(2, list->size);
contact_t *dave = list->contacts[0];
contact_t *bob = list->contacts[1];
contact_t *bob = list->contacts[0];
contact_t *dave = list->contacts[1];
assert_string_equals("Dave", dave->name);
assert_string_equals("Bob", bob->name);
@ -196,8 +197,8 @@ static void remove_second_when_three(void)
contact_list_t *list = get_contact_list();
assert_int_equals(2, list->size);
contact_t *james = list->contacts[0];
contact_t *bob = list->contacts[1];
contact_t *bob = list->contacts[0];
contact_t *james = list->contacts[1];
assert_string_equals("James", james->name);
assert_string_equals("Bob", bob->name);
@ -213,8 +214,8 @@ static void remove_third_when_three(void)
contact_list_t *list = get_contact_list();
assert_int_equals(2, list->size);
contact_t *james = list->contacts[0];
contact_t *dave = list->contacts[1];
contact_t *dave = list->contacts[0];
contact_t *james = list->contacts[1];
assert_string_equals("James", james->name);
assert_string_equals("Dave", dave->name);