Why does the program terminate on startup without outputting anything?

Question

I made a C++ user input that detects when no value is being input, but it terminates the program on startup without outputting anything. Why?

#include <iostream>

int main() {
  bool entered = false;
  while(entered = false) {
    std::cout << "Please enter thy name: ";
    std::string name;
    std::getline(std::cin, name);
    std::cout << "Hello, " + name;
    int length = name.length();
    if(length > 0) {
      std::cout << "Hello, " + name;
      entered = true;
    } else {
      std::cout << "Thou did not enter thy name";
    }
  }
}

I already made a similar program in Java with a similar format and that one works fine.

Answer 1

This loop condition:

while(entered = false) 

is wrong. Instead of comparing false and entered, you are assigning false to entered.

Instead, you need to do:

while(entered == false) 

If you turn on warnings, for example with -Wall, the compiler will tell you that you are likely making a mistake here.