C++ Using Method on Vector (If is word) - c++

Question

So I have a couple methods defined, one checks if the next is a word, one checks if there is a next word.
I take inputs for the text files, add the files content to a vector, then use the for loop
I can make it work by simply doing a for loop through the vector:
for (int x = 0; x != v2.size(); ++x) {
But I want to use my two methods
bool ReadWords::isNextWord()
and
string ReadWords::getNextWord()
{
//take the input of the file until end of list is reached and return it
}
So how would I do something like
vector<string> bigTextFile;
vector<string> vct;
while(vct.isNextWord) {
vct.getNextWord
if(vct.getNextWord == bigTextFile[i] {
counter++
}
}
Let me know if you need any more of the code

Answer 1

What about this:
vector<string> bigTextFile;
vector<string> vct;
while(ReadWords::isNextWord(vct))
{
string nextWord = ReadWords::getNextWord(vct);
if(nextWord == bigTextFile[i])
{
counter++;
}
}
You could make your functions take in a vector as a parameter then do the work on the vector inside each function. I'm not 100% sure what your implementation is since its not the complete code.

Answer 2

I'm not sure why are you trying to write an object, but here is how I would have approached the problem:
Step 1. Create a predicate for the words
bool is_needed_word(const std::string& word, const std::vector<std::string>& needed_words)
{
if (std::find(needed_words.begin(),
needed_words.end(),
word) != needed_words.end())
return true;
}
//some where in your function
std::vector<std::string> needed_words{"apple", "moon", "etc"};
auto predicate = [&needed_words](const auto& word)
{return is_needed_word(word, needed_words);}
Step 2. Copy/count/whatever you want to do with the words in the stream
//copying
std::vector<std::string> extracted_words;
std::ifstream input_file{"input.txt"};
//check if opened correctly
std::copy_if(std::istream_iterator<std::string>(input_file), {},
std::back_inserter(extracted_words));
//counting
std::size_t occurrence_counter = std::count_if(std::istream_iterator<std::string>(input_file),{},predicate)