Trying to store a filehandle in a hash for some reporting. If the filehandle is NULL, then we default to STDOUT. This code is broken:
#!/usr/bin/env perl #$Name$ #$Id$ use FileHandle; my $FName = shift(@ARGV) || ""; my %uHHash; if ($FName ne "") { open($uH, ">".$FName); $uHHash{uHANDLE} = $uH; } else { $uHHash{uHANDLE} = STDOUT; } printf($uHHash{uHANDLE} "Output is here (%s) !\n","HJGKJGJHJLHL"); close($uHHash{uHANDLE}); exit(0);
Yet, assigning the handle to a temporary variable and placing that temp var into the printf works...
... my $uuh = $uHHash{uHANDLE}; printf($uuh "Output is here (%s) !\n","HJGKJGJHJLHL"); close($uHHash{uHANDLE}); exit(0);
Why? I have tried backslashing the hashed handle, backslash star, dereferencing the hashed value as scalar and hash...Mostly seeing STDOUT is scalar and FileHandle is GLOB, but this doesn't really explain the why for printf acting this way to a hash reference versus the scalared value...

In reply to Odd Hashed Filehandle behavior by godfetish

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