I mean open does not detect error if you "open" a directory.
Sure it does $ perl -e " open $dirname, q/../ or die $!, $/, $^E, $/ "
Permission denied
Access is denied
$ perl -e " open $dirname, q/../ or die join qq/\n/, $!,$^E,grep( { $!
+{$_} } keys %! ) "
Permission denied
Access is denied
ERROR_INVALID_DATA
EMARCH_ENC_I17_IMM5C_INST_WORD_POS_X
EMR_SETBRUSHORGEX
EVENT_SYSTEM_CONTEXTHELPEND
EACCES at -e line 1.
Also last code with "wantarray" and "scalar" looks useless. No, its is not useless. You must not know perl well.
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