How to install libcurl and associate it with a C ++ program?

I am trying to use a C ++ program to use libcurl and cannot figure it out. When developing in C ++, I usually use visual studio, but this project uses a vi ssh session for a centos computer using VI and g ++. I ran yum install curl, yum install libcurl, yuminstall curl-devel and yum installed libcurl-devel and still cannot compile the program.

The API documentation is pretty good, and I can find information on how to use libcurl once it is installed correctly, but installing it will turn out to be painful, but.

The code:

#include<iostream>
#include<string>
#include<curl/curl.h>
using namespace std;


string data; //will hold the urls contents

size_t writeCallback(char* buf, size_t size, size_t nmemb, void* up)
{ //callback must have this declaration
    //buf is a pointer to the data that curl has for us
    //size*nmemb is the size of the buffer

    for (int c = 0; c<size*nmemb; c++)
    {
        data.push_back(buf[c]);
    }
    return size*nmemb; //tell curl how many bytes we handled
}

int main(void) {

 CURL* curl;

    curl_global_init(CURL_GLOBAL_ALL);
    curl=curl_easy_init();

    curl_easy_setopt(curl, CURLOPT_URL, "https://domain.com");
    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, &writeCallback);
    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
    curl_easy_setopt(curl, CURLOPT_USERPWD, "username:password");

    curl_easy_perform(curl);

    cout << endl << data << endl;
    cin.get();

    curl_easy_cleanup(curl);
    curl_global_cleanup();


    return 0;
}

When trying to compile the following error:

/tmp/ccfeybih.o: In function `main':
helloworld.cpp:(.text+0x72): undefined reference to `curl_global_init'
helloworld.cpp:(.text+0x77): undefined reference to `curl_easy_init'
helloworld.cpp:(.text+0x96): undefined reference to `curl_easy_setopt'
helloworld.cpp:(.text+0xb1): undefined reference to `curl_easy_setopt'
helloworld.cpp:(.text+0xcc): undefined reference to `curl_easy_setopt'
helloworld.cpp:(.text+0xe7): undefined reference to `curl_easy_setopt'
helloworld.cpp:(.text+0xf3): undefined reference to `curl_easy_perform'
helloworld.cpp:(.text+0x132): undefined reference to `curl_easy_cleanup'
helloworld.cpp:(.text+0x137): undefined reference to `curl_global_cleanup'
collect2: ld returned 1 exit status

I can’t find where to go from here.