Question

How to get the first words from array of strings in C++

Answer 1

#include <iostream>
#include <sstream>

std::string getFirstWords(const char *arr[], unsigned arrsize) {
    std::string firstwords = "";

    for(unsigned i = 0; i < arrsize; i++) {
        std::stringstream ss(std::stringstream::in | std::stringstream::out);
        ss << arr[i];

        std::string word;
        ss >> word;
        firstwords += word;

        if (i < arrsize - 1)
            firstwords += " ";
    }

   return firstwords;
}

int main () 
{
    const char *arr[] = {
            "c c++ assembly",
            "c# vb java",
            "javascript php css"
    };

    std::string firstwords = getFirstWords(arr, sizeof(arr) / sizeof(arr[0]));

    std::cout << firstwords;
    
    return 0;
}



/*
run:

c c# javascript

*/

 

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