On Feb 1, [EMAIL PROTECTED] said:
>Is there a way for a subroutine to tell when it got passed a FILEHANDLE?
You could test to see if its ref() returns "GLOB" or "IO::File" or
"IO::Handle", etc., but I think it's a nifty idea to do:
if (defined fileno($arg)) {
# it's an open filehandle
}
Hi,
Is there a way for a subroutine to tell when it got passed a FILEHANDLE?
Running a quick test suggests a way, which is to check the first char of the result of
interpolating the subroutine param as a string. Can anyone say whether this is robust
and if not what might be a better approach?
