Implement the vector functions specified in the header.

src/vec.c

@@ -0,0 +1,105 @@
+#include "vec.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+libds_result vec_init(vec* v){
+  libds_result result = SUCCESS;
+	
+  v->size = 0;
+  v->capacity = LIBDS_VEC_CAPACITY;
+  v->data = calloc(LIBDS_VEC_CAPACITY, sizeof(void*));
+  if(v->data == NULL){
+    result = MALLOC;
+  }
+
+  return result;
+}
+void vec_free(vec* v){
+  v->size = 0;
+  v->capacity = 0;
+  if(v->data) {
+    free(v->data);
+  }
+  v->data = NULL;
+}
+
+libds_result vec_add(vec* v, void* data){
+  libds_result result = SUCCESS;
+  if(v->size >= v->capacity) {
+    void* new_mem = calloc(v->capacity *= 2, sizeof(void*));
+    if(new_mem) {
+      memcpy(new_mem, v->data, sizeof(void*) * v->capacity / 2);
+      free(v->data);
+      v->data = new_mem;
+    } else {
+      result = MALLOC;
+    }
+  }
+
+  if(result == SUCCESS) {
+    int index = 0;
+    while(index < v->capacity) {
+      void** data_array = v->data;
+      if(data_array[index] == NULL) {
+        data_array[index] = data;
+	v->size++;
+	break;
+      }
+      index++;
+    }
+  }
+
+  return result;
+}
+void vec_remove(vec* v, void* data){
+  int elements = v->size;
+  int index = 0;
+  void** data_array = v->data;
+  while(elements > 0) {
+    if(data_array[index]) {
+      elements--;
+      if(data_array[index] == data) {
+        data_array[index] = NULL;
+	v->size--;
+      }
+    }
+    index++;
+  }
+}
+
+void* vec_find(vec* v, void* data, compare_func compare){
+  int elements = v->size;
+  int index = 0;
+  void* found = NULL;
+  void** data_array = v->data;
+  while(elements > 0 && found == NULL){
+      if(data_array[index]){
+	if(compare(data, data_array[index])){
+	  found = data_array[index];
+	}
+	elements--;
+      }
+      index++;
+  }
+  return found;
+}
+int vec_foreach(vec* v, void* data, compare_func compare, foreach_func foreach, ...){
+  int elements = v->size;
+  int index = 0;
+  int return_code = 0;
+  void** data_array = v->data;
+  va_list args;
+  while(elements > 0 && return_code == 0) {
+    if(data_array[index]){
+      if(compare(data, data_array[index])){
+        va_start(args, foreach);
+	return_code = foreach(data_array[index], args);
+        va_end(args);
+      }
+      elements--;
+    }
+    index++;
+  }
+  return return_code;
+}