Dynamic "array" in C:

// Create
int *array = (int *)malloc(sizeof(int) * 2);
array[0] = 1;
array[1] = 2;
// Add
int *array = (int *)realloc(array, sizeof(int) * 3);
array[2] = 3;
// Remove
array[1] = array[2];
int *array = (int *)ralloc(array, sizeof(int) * 2);
// Clear
free(array);

Dyanmic "array" in C++:

// Create
std::vector<int> array(2);
array[0] = 1;
array[1] = 2;
// Add
array.push_back(3);
// Remove
array.erase(array.begin() + 1);
// Clear
array.clear();


/** Concatenate a string to a string.
 * @param str Pointer to the string
 * @param str2 String to concatenate
 *
 * This might be a bit much when I could use a statically sized array for the string, but this gives me something similar to C++'s string class without using C++.
 */
static void my_strcat(char **str, const char *str2)
{
	unsigned len = strlen(*str) + 1;
	if (*str)
		*str = (char *)srealloc(*str, strlen(str2) + len);
	else
	{
		*str = (char *)smalloc(strlen(str2) + 1);
		strcpy(*str, "");
	}
	strcat(*str, str2);
}

// So, in C: (str is a char *)
my_strcat(&str, "Zomg");

// In C++: (str is an std::string)
str += "Zomg";