pcd_convert_NaN_nan.cpp

/*
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#include <cstring>
#include <fstream>
#include <iostream>
#include <limits>
#include <sstream>
#include <string>

int
main (int argc, char **argv)
{
  if (argc != 3)
  {
    std::cout << "call with " << argv[0] << " input.pcd output.pcd" << std::endl;
    return 0;
  }

  if (!strcmp (argv[1], argv[2]))
  {
    std::cout << "called with same name for input and output! (done nothing)" << std::endl;
    return 1;
  }

  std::ostringstream ss;
  ss << std::numeric_limits<float>::quiet_NaN ();
  std::string nanStr (ss.str ());

  std::cout << R"(converting ")" << nanStr << R"(" to "nan")" << std::endl;

  std::ifstream input (argv[1]);
  std::ofstream output (argv[2]);
  std::string str;

  while (input >> str)
  {
    if (str == nanStr)
      output << "nan";
    else
      output << str;
    char next = static_cast<char> (input.peek ());
    if (next == '\n' || next == '\r')
      output << "\n";
    else
      output << " ";
  }
  return 0;
}