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String comparison Question

Ensei (19)
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bool readline(int socketfd, string &line) {
  int n; 
  char buffer[1025]; 

  line = "";

  while (line.find('\n') == string::npos) {
    int n = read(socketfd, buffer, 1024); // ler do socket
    if (n == 0) return false; // nada para ser lido -> socket fechado
    buffer[n] = 0; // colocar o \0 no fim do buffer
    line += buffer; // acrescentar os dados lidos à string
  }
  // Retirar o \n (lemos uma linha mas não precisamos do \n)
  line.erase(line.end() - 1);
  
  return true;  
}

void* cliente(void* args) {
  int sockfd = *(int*)args;
  string line;
  
  PGconn *conn = PQconnectdb("host ='***' user='***' password='***'");
  if(!conn){ cout << "Failed to connect to database." << endl; exit(-1);}
  if(PQstatus(conn) != CONNECTION_OK) { cout << "Failed to connect to database" << endl; exit(-1);}
  else if(PQstatus(conn) == CONNECTION_OK) cout << "You have connected sucefully to the Database." << endl;
  string one;
  connect_to_schema(conn);
  
  clients.insert(sockfd);
  cout << "Client connected: " << sockfd << endl;
  
  login(sockfd, conn);
  
  string one;
  readline(sockfd, one);
  cout << one << endl;
  if(one == "hello") cout << "testehello" << endl;
  
  while (readline(sockfd, line)) {
    one = line;
    int n = one.find("/");
    if(one == "find") {cout << "testefind" << endl;}
    cout << "Socket " << sockfd << " said: " << line << endl;
    broadcast(sockfd,line,0);
  }
  
  cout << "Client disconnected: " << sockfd << endl;
  clients.erase(sockfd);
  close(sockfd);
}


The purpose of this is to read a string from a socket and compare to another string. Basically, I want to know why this:

if(one == "hello") cout << "testehello" << endl;

doesn't work, especially when I have the same logic here:

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readline(sockfd, comando);
  int s1 = comando.find(" ");
  string login = comando.substr(0,s1);
  string password = comando.substr(s1+1);
  password.erase(password.end() - 1);
  comando.erase(comando.end() - 1);
  if (comando == "/help"){callhelp(sockfd); login2(sockfd,conn);}


And this one works. The 'one' string prints hello, both to the terminal and the socket, but the comparison isn't working.
hanst99 (2869)
It does work. The error is somewhere else. (Btw: you declare one twice).
Ensei (19)
I just now noticed that I do this
comando.erase(comando.end() - 1);
in the second portion but forgot on the first. I'll try again.
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