Merge branch 'master' of https://git.lain.church/emil/hl

source/vector.h

@@ -0,0 +1,99 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+// TODO: Handle error warnings?
+// TODO: Implement more useful functions?
+
+typedef struct {
+	char   * data;
+	size_t   element_size;
+	size_t   element_count;
+} vector_t;
+
+extern void vector_init(vector_t * vector,
+                        size_t     element_size,
+                        size_t     element_count);
+
+extern void vector_push(vector_t * vector,
+                        void     * data);
+
+extern void vector_pop(vector_t * vector);
+
+extern void * vector_get(vector_t * vector,
+                         size_t     element);
+
+extern void vector_set(vector_t * vector,
+                       void     * data,
+                       size_t     element);
+
+extern void vector_free(vector_t * vector);
+
+extern void example_print(example_t * example);
+
+void vector_init(vector_t * vector,
+                 size_t     element_size,
+                 size_t     element_count) {
+	vector->data          = NULL;
+	vector->element_size  = element_size;
+	vector->element_count = element_count;
+
+	vector->data = malloc(vector->element_size * vector->element_count);
+
+	if ((! vector->data) && (vector->element_count)) {
+		puts("vector_init");
+		exit(EXIT_FAILURE);
+	}
+
+	memset(vector->data,
+	       0,
+	       vector->element_size * vector->element_count);
+}
+
+void vector_push(vector_t * vector,
+                 void     * data) {
+	++vector->element_count;
+
+	vector->data = realloc(vector->data,
+	                       vector->element_size * vector->element_count);
+
+	if (! vector->data) {
+		puts("vector_push");
+		exit(EXIT_FAILURE);
+	}
+
+	memcpy(&vector->data[(vector->element_count - 1) * vector->element_size],
+	       data,
+	       vector->element_size);
+}
+
+void vector_pop(vector_t * vector) {
+	(void) vector;
+}
+
+void * vector_get(vector_t * vector,
+                  size_t     element) {
+	if (element >= vector->element_count) {
+		puts("vector_get");
+		exit(EXIT_FAILURE);
+	}
+
+	return &vector->data[vector->element_size * element];
+}
+
+void vector_set(vector_t * vector,
+                void     * data,
+                size_t     element) {
+	if (element >= vector->element_count) {
+		puts("vector_set");
+		exit(EXIT_FAILURE);
+	}
+
+	memcpy(&vector->data[vector->element_size * element],
+	       data,
+	       vector->element_size);
+}
+
+void vector_free(vector_t * vector) {
+	free(vector->data);
+}