Compare a string with a file.
 

Hi,

I'm quite new to C++ so all help is appreciated.

I have a program that makes a string of at least three characters. I want to be able to compare the string to a list of words (i.e. dictionary) in a separate file, and then output the string if it is in the dictionary.

The string 'word' is a string object so I'm having problems with strcmp (which only takes chars?). The reason I used a string object is because I have to use substr and concatenation, and I'm not very familiar with using char arrays. (I've mostly done Java before).

What I have got so far:

char dictword[32];    

ifstream dictionary("dictionary.txt");



while (dictionary>>dictword)

{      

        if (strcmp(dictword,word)!=0)

                   cout<<word<<'\n";

}

Thanks in advance,
Tim

Re: Compare a string with a file.
 

Why use char arrays when c++ provides you with strings? Mixing up C and C++ is very confusing and will require a lot of casting. So what about something like:

string word = "abc";

string dictword;

ifstream dictionary("dictionary.txt");

while (getline(dictionary, dictword, ' '))

{      

        if (word == dictword)

                   cout << "found: " << word << "\n";

}

Off course you'll have to build in some error checking etc. And this code assumes that all words in textfile are delimited with a space. So some more work is required from you