Test case for Emscripten. In native code this will continue on to next line, but in Javascript, it runs forever with the given input.

prcoessfile.txt

A
1
B

C
3

process.cpp

#include <iostream>
#include <fstream>

int main() {

   std::string filename = "processfile.txt";
   std::cout << "Processing file:" << filename << "\n";
   std::ifstream stream(filename.c_str());

   while (!stream.eof())
   {
        std::string key, value;
        std::getline(stream, key);
        std::getline(stream, value);

        std::cout << "Read:" << key << ", with value:" << value << "\n";

        if(value.length() == 0) {
            std::cout << "Got a blank value" << "\n";
            continue;
        }
   }

   return 0;

}