for (int i = 0; extensions[i]; i++)
{
file_name.ext_ = orig_ext;
if (*extensions[i] && !file_name.ext_.empty ())
file_name.ext_ += ".";
file_name.ext_ += extensions[i];
for (int i = 0; extensions[i]; i++)
{
file_name.ext_ = orig_ext;
if (*extensions[i] && !file_name.ext_.empty ())
file_name.ext_ += ".";
file_name.ext_ += extensions[i];