Function wrap_write

src/basenc.c:1442–1471

static void
wrap_write (char const *buffer, idx_t len,
            idx_t wrap_column, idx_t *current_column, FILE *out)
{
  if (wrap_column == 0)
    {
      /* Simple write. */
      if (fwrite (buffer, 1, len, stdout) < len)
        write_error ();
    }
  else
    for (idx_t written = 0; written < len; )
      {
        idx_t to_write = MIN (wrap_column - *current_column, len - written);

        if (to_write == 0)
          {
            if (fputc ('\n', out) == EOF)
              write_error ();
            *current_column = 0;
          }
        else
          {
            if (fwrite (buffer + written, 1, to_write, stdout) < to_write)
              write_error ();
            *current_column += to_write;
            written += to_write;
          }
      }
}

static _Noreturn void
finish_and_exit (FILE *in, char const *infile)