Empty file can not be parsed

[wodadehencou]

I use csv.mmap(filename) to read csv file.

When the input file is empty (size 0), I expect a zero length output.

  if (csv.mmap(fileName)) {
    for (const auto row : csv)  // should not loop

but I get the following error

libc++abi.dylib: terminating with uncaught exception of type std::__1::system_error: Invalid argument fish: Job 1, '../bin/mp20_client.exe -in 0....' terminated by signal SIGABRT (Abort)

[bpo217]

I am experiencing the same error.