diff --git a/xtandard.c b/xtandard.c
index 569497f..94c9170 100644
--- a/xtandard.c
+++ b/xtandard.c
@@ -520,6 +520,62 @@ int string_split_space (char * string) {
 	return (++count);
 }
 
+void memory_delete (void * memory, int length) {
+	int i = 0;
+
+	char * cast = (char *) memory;
+
+	fatal_failure (memory == NULL, "memory_delete: Memory is null pointer.");
+
+	if (length <= 0) {
+		return;
+	}
+
+	for (i = 0; i != length; ++i) {
+		cast [i] = '\0';
+	}
+}
+
+int memory_compare (void * memory, void * source, int length) {
+	int i = 0;
+
+	char * cast_0 = (char *) memory;
+	char * cast_1 = (char *) source;
+
+	fatal_failure (memory == NULL, "memory_compare: Memory is null pointer.");
+	fatal_failure (source == NULL, "memory_compare: Source is null pointer.");
+
+	if (length <= 0) {
+		return;
+	}
+
+	for (i = 0; (cast_0 [i] != '\0') && (cast_1 [i] != '\0'); ++i) {
+		if (cast_0 [i] != cast_1 [i]) {
+			return (0);
+		}
+	}
+
+	return (1);
+}
+
+void memory_copy (void * memory, void * source, int length) {
+	int i = 0;
+
+	char * cast_0 = (char *) memory;
+	char * cast_1 = (char *) source;
+
+	fatal_failure (memory == NULL, "memory_copy: Memory is null pointer.");
+	fatal_failure (source == NULL, "memory_copy: Source is null pointer.");
+
+	if (length <= 0) {
+		return;
+	}
+
+	for (i = 0; i != length; ++i) {
+		cast_0 [i] = cast_1 [i];
+	}
+}
+
 void terminal_clear (void) {
 	out ("\033[2J\033[H", 7);
 }
diff --git a/xtandard.h b/xtandard.h
index d2779cb..532963b 100644
--- a/xtandard.h
+++ b/xtandard.h
@@ -96,7 +96,7 @@ extern int character_compare_array (char, char *, int);
 extern int  string_length  (char *);
 extern void string_reverse (char *);
 
-extern void string_delete  (char *, int);
+extern void string_delete (char *, int);
 
 extern int  string_compare     (char *, char *);
 extern void string_copy        (char *, char *);
@@ -108,6 +108,11 @@ extern void string_concatenate_limit (char *, char *, int);
 
 extern int string_split_space (char *);
 
+extern void memory_delete (void *, int);
+
+extern int  memory_compare (void *, void *, int);
+extern void memory_copy    (void *, void *, int);
+
 extern void terminal_clear       (void);
 extern void terminal_style       (int, int);
 extern void terminal_show_cursor (int);