kozura

struct Item {
	Item(): next(NULL), c('\0') {
	}

	char c;
	Item *next;
};

struct List {
	List(const char* in_str) : item(NULL){
		unsigned size = strlen(in_str);

		item = new Item[size];

		for (unsigned i(0); i < size; ++i) {
			item[i].c = in_str[i];
			
			if (i) {
				item[i-1].next = &item[i];
			}
		}
	}

	~List() {
		delete[] item;
	}

	void remove(char in_) {
		Item* it = item;

		while (it) {
			if (it->c == in_) {
				*it = *it->next;
			}

			if (it->next) {
				if (it->c != in_) {
					it += (it->next - it);
				}
			} else {
				if (it->c == in_) {
					it->c = '\0';
				}
				break;
			}
		}
	}

	const char* takeString() {
		const unsigned size = 255;
		char str[size];

		Item* it = item;
		char* ptrstr = (char*)&str;

		memset(&str, '\0', size);

		while (it) {
			*ptrstr = it->c;

			if (!it->next) {
				break;
			}
					
			if (it->next) {
				it += (it->next - it);
				++ptrstr;
			} else {
				break;
			}
		}

		return str;
	}

	Item* item;
};

int main()
{
	List list("    bla1         bla2  bla3    ");

	list.remove(' ');

	printf("\n begin[%s%s\n", list.takeString(), "]end");

	return 0;
}