Changeset 154fdc8 for doc/generic_types/evaluation/c-stack.c

Timestamp:

Apr 19, 2017, 10:15:45 AM (9 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, deferred_resn, demangler, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, new-ast, new-ast-unique-expr, new-env, no_list, persistent-indexer, pthread-emulation, qualifiedEnum, resolv-new, with_gc

Children:

cd348e7

Parents:

221c2de7 (diff), de4ce0e (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge branch 'master' of plg.uwaterloo.ca:software/cfa/cfa-cc

File:

• doc/generic_types/evaluation/c-stack.c (modified) (1 diff)

doc/generic_types/evaluation/c-stack.c

@@ -7 +7 @@
 };
 
-struct stack new_stack() {
-        return (struct stack){ NULL };
+struct stack new_stack() { return (struct stack){ NULL }; /***/ }
+
+void copy_stack(struct stack* s, const struct stack* t, void* (*copy)(const void*)) {
+        struct stack_node** crnt = &s->head;
+        struct stack_node* next = t->head;
+        while ( next ) {
+                *crnt = malloc(sizeof(struct stack_node)); /***/
+                **crnt = (struct stack_node){ copy(next->value) }; /***/
+                crnt = &(*crnt)->next;
+                next = next->next;
+        }
+        *crnt = 0;
 }
 
-void clear_stack(struct stack* s) {
+void clear_stack(struct stack* s, void (*free_el)(void*)) {
         struct stack_node* next = s->head;
         while ( next ) {
                 struct stack_node* crnt = next;
                 next = crnt->next;
-                free(crnt->value);
+                free_el(crnt->value);
                 free(crnt);
         }
+        s->head = NULL;
 }
 
-_Bool stack_empty(const struct stack* s) {
-        return s->head == NULL;
-}
+_Bool stack_empty(const struct stack* s) { return s->head == NULL; }
 
 void push_stack(struct stack* s, void* value) {
-        struct stack_node* n = malloc(sizeof(struct stack_node));
-        *n = (struct stack_node){ value, s->head };
+        struct stack_node* n = malloc(sizeof(struct stack_node)); /***/
+        *n = (struct stack_node){ value, s->head }; /***/
         s->head = n;
 }