C++ find the word in a particular sentence

[RhoAies]

The purpose of the code I wrote is to find a word in a particular sentence and print its location. To summarize, I tried to do this, I got 2 entries, the first is a sentence and the other is a word I put them in the array, then I start navigating through the sentence, if there is the first letter of the word , I enter the loop and if the word is the same as the word the similarity_rate is going to be as word long. There is no error in the code I wrote, but I can't see the output in the terminal.

#include <iostream>
#include <string>
using namespace std;
int main()
{
    string sentence;
    cout << "Enter the string : ";
    getline(cin,sentence);
    size_t  lenght = sentence.size();
    const char* ptr_sentence = sentence.c_str();
    
    string key_word;
    cout << "Which world do you want to find : ";
    getline(cin, key_word);
    size_t lenght_world = key_word.size();
    const char* word = key_word.c_str();
    int rate_of_smilarity = -1;
    int distance = -1;
    int temp_distance;
    for (int i = 0; i <= lenght; i++) {
        distance++;
        if (ptr_sentence[i] == word[0])
            for (int j = 0; j <= lenght_world; j++) {
                if (ptr_sentence[j] == word[j])
                    rate_of_smilarity++;
                    temp_distance = distance;
                
            }
        else if (rate_of_smilarity == lenght_world)
            cout << temp_distance;
    }
    return 0;
    
}

 

[Deleted member 2829]

Have you stepped through this code it in a debugger, verifying the program flow and examining all these values as you go ?

In this bit of code:

if (ptr_sentence[j] == word[j])
    rate_of_smilarity++;
    temp_distance = distance;

aren't you missing a pair of brackets ? Either that, or your indentation sucks. Note that I do not grasp your program logic with all the different variables.

Sorry to be a bit critical, but when I see sloppy bracketing and indentation, spelling errors like lenght, world, smilarity, and long incomprehensible sentences like "To summarize, I tried to do this, I got 2 entries, the first is a sentence and the other is a word I put them in the array, then I start navigating through the sentence, if there is the first letter of the word , I enter the loop and if the word is the same as the word the similarity_rate is going to be as word long" I do get worried about the accuracy of the programmer.... Programming is a very exact science. If I can give one tip to beginning programmers, it is that being obsessively clear, concise and consistent really pays off. Especially if you ask for someone's help 😉

I have a feeling this program might crash at the end of the loop because you have one iteration too many:

for (int i = 0; i <= lenght; i++)

but this being C++ I am not 100% sure. I don't like that you first create a C++ string object, then immediately convert it to an old-fashioned C-style char pointer, and proceed as if you are writing plain old C (which you might just as well have done).