REFACTOR: Error debugging for most functions

include/char.h

@@ -53,7 +53,7 @@ max_size(const Vec8_t* ptr);
 void delete (const Vec8_t* vec);
 
 Vec8_t
-clear(Vec8_t* vec);
+clear(const Vec8_t* vec);
 
 char
 at(const Vec8_t* vec, int idx);

src/char.c

@@ -48,6 +48,7 @@ push_back(Vec8_t* vec, const char val)
 	if (!vec->arr)
 	{
 		LOGERROR(ERR_BUF_NULL);
+		LOG("If you think this is wrong, reserve memory first");
 		return dst;
 	}
 	if (vec->size + 1 > vec->max_size)
@@ -149,13 +150,12 @@ shrink_to_fit(Vec8_t* ptr)
 int
 swap(Vec8_t* ptr, Vec8_t* ptr_other)
 {
-	Vec8_t empty = create(nullptr, 0);
-	if (ptr == nullptr || ptr_other == nullptr) return 0;
-	if (ptr->arr == nullptr || ptr_other->arr == nullptr) return 0;
+	Vec8_t empty = create(nullptr, -1);
+	if (ptr == nullptr || ptr_other == nullptr || ptr->arr == nullptr ||
+	    ptr_other->arr == nullptr)
+		return 0;
 	empty.arr = ptr->arr;
-	ptr->arr = nullptr;
 	ptr->arr = ptr_other->arr;
-	ptr_other->arr = nullptr;
 	ptr_other->arr = empty.arr;
 	if (ptr != nullptr && ptr_other != nullptr)
 	{
@@ -202,18 +202,23 @@ delete(const Vec8_t* vec)
 }
 
 Vec8_t
-clear(Vec8_t* vec)
+clear(const Vec8_t* vec)
 {
-	if (vec != nullptr && vec->size > 0)
+	Vec8_t dst = create(nullptr, -1);
+	if (!vec && !vec->arr)
+	{
+		return dst;
+	}
+	dst.arr = vec->arr;
+	if (vec->size > 0)
 	{
 		for (int i = 0; i < vec->size; i++)
 		{
-			if (!vec->arr) continue;
-			vec->arr[i] = 0;
+			dst.arr[i] = 0;
 		}
-		vec->size = 0;
+		dst.size = 0;
 	}
-	return *vec;
+	return dst;
 }
 
 char
@@ -221,11 +226,13 @@ at(const Vec8_t* vec, const int idx)
 {
 	if (vec == nullptr)
 	{
-		return -2;
+		LOGERROR(ERR_VECTOR_NULL);
+		return ERR_VECTOR_NULL;
 	}
 	if (vec->arr == nullptr)
 	{
-		return -3;
+		LOGERROR(ERR_BUF_NULL);
+		return ERR_BUF_NULL;
 	}
 	if (vec->size <= idx)
 	{
@@ -235,12 +242,8 @@ at(const Vec8_t* vec, const int idx)
 		exit(-4);
 		// return -4;
 	}
-	if (vec != nullptr && vec->arr != nullptr && vec->size > idx)
-	{
 	return vec->arr[idx];
 }
-	return -1;
-}
 
 __attribute__((overloadable)) Vec8_t*
 erase(Vec8_t* vec, const size_t iter)

src/main.c

@@ -22,21 +22,31 @@
 int
 main()
 {
-	char arr[] = { 'a' };
-	// Vec8_t v1 = create(arr, find_len(arr));
-	// Vec8_t v1 = create((char[]) { 'a', 'b', 'c', 'd' }, 4);
-	Vec8_t v1 = create(nullptr, 0);
+	char arr[] = { '1', '2', '3', '4' };
+	Vec8_t v1 = create(arr, find_len(arr));
+	Vec8_t v2 = create((char[]) { 'a', 'b', 'c', 'd' }, 4);
+
+	print_vec(&v1);
+	print_vec(&v2);
+
+	if (swap(&v1, &v2))
+	{
+		print_vec(&v1);
+		print_vec(&v2);
+	}
+	// Vec8_t v1 = create(nullptr, 0);
 	// v1 = reserve(&v1, 10);
 	// v1 = pop_back(&v1);
-	for (int i = 0; i < 10; i++)
-	{
-		v1 = push_back(&v1, 'a');
-	}
-	print_vec(&v1);
-	printf("SIZE: %zu\n", v1.size);
-	v1 = push_back(&v1, 'a');
-	print_vec(&v1);
-	printf("SIZE: %zu\n", v1.size);
+	// for (int i = 0; i < 10; i++)
+	// {
+	// 	v1 = push_back(&v1, 'a');
+	// }
+	// print_vec(&v1);
+	// printf("SIZE: %zu\n", v1.size);
+	// v1 = push_back(&v1, 'a');
+	// print_vec(&v1);
+	// printf("SIZE: %zu\n", v1.size);
 	delete(&v1);
+	delete(&v2);
 	return 0;
 }