push

functional_market/Proficiencies/list.c

@@ -0,0 +1,24 @@
+#include "list.h"
+
+void push_front(struct list **l, void *data, acceptor p, acceptor f)
+{
+    (void)l;
+    (void)data;
+    (void)p;
+    (void)f;
+}
+
+void pop_front(struct list **l)
+{
+    (void)l;
+}
+
+void print_list(struct list *l)
+{
+    (void)l;
+}
+
+void destroy_list(struct list **l)
+{
+    (void)l;
+}

functional_market/Proficiencies/list.h

@@ -0,0 +1,19 @@
+#ifndef LIST_H
+#define LIST_H
+
+typedef void (*acceptor)(void*);
+
+struct list
+{
+    void *data;
+    struct list *next;
+    acceptor print;
+    acceptor free;
+};
+
+void push_front(struct list **l, void *data, acceptor p, acceptor f);
+void pop_front(struct list **l);
+void print_list(struct list *l);
+void destroy_list(struct list **l);
+
+#endif /* ! LIST_H */

functional_market/Proficiencies/visitor.c

@@ -0,0 +1,22 @@
+#include "visitor.h"
+
+void visit(struct ast_node *node, visitor v)
+{
+    (void)node;
+    (void)v;
+}
+
+void print_prefix(struct ast_node *node)
+{
+    (void)node;
+}
+
+void print_infix(struct ast_node *node)
+{
+    (void)node;
+}
+
+void print_suffix(struct ast_node *node)
+{
+    (void)node;
+}

functional_market/Proficiencies/visitor.h

@@ -0,0 +1,36 @@
+#ifndef VISITOR_H
+#define VISITOR_H
+
+enum node_type
+{
+    // 0 operand
+    NUM,
+
+    // 1 operand
+    POS,
+    NEG,
+
+    // 2 operands
+    ADD,
+    SUB,
+    MUL,
+    DIV,
+    MOD,
+};
+
+struct ast_node
+{
+    int value;
+    enum node_type type;
+    struct ast_node *children;
+};
+
+typedef void(*visitor)(struct ast_node *);
+
+void visit(struct ast_node *node, visitor v);
+
+void print_prefix(struct ast_node *node);
+void print_infix(struct ast_node *node);
+void print_suffix(struct ast_node *node);
+
+#endif /* ! VISITOR_H */