Re: use constant usage clarification

[this]' gives a scalar assignment error use constant x = 1/3

Really? Cos when I try it, the error is: Unquoted string "x" may clash with future reserved word.

Care to post a short script that produces that error when run?

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Re^2: use constant usage clarification by Discipulus (Canon) on Oct 31, 2014 at 08:45 UTC
Hello BrowserUK i'm receiving too an assignement error using the wrong syntax with the not stringified left value: #(something like:) perl -MConfig -e "BEGIN{print 'Perl ', map {$Config{$_},' '}qw/version + os archname/ }; use constant X = 1/3;print qq(\n),+X,qq(\n)" ----------------------------------------ЇЇЇЇЇЇЇ \| Can't modify constant item in scalar assignment at -e line 1, near +"3;" \| BEGIN not safe after errors--compilation aborted at -e line 1. \| Perl 5.14.2 MSWin32-x86-multi-thread -------------------------------------------------------------------- +---ЇЇЇЇЇЇЇ ----------------------------------------ЇЇЇЇЇЇЇ \| Can't modify constant item in scalar assignment at -e line 1, near +"3;" \| BEGIN not safe after errors--compilation aborted at -e line 1. \| Perl 5.20.0 MSWin32-x86-multi-thread-64int -------------------------------------------------------------------- +---ЇЇЇЇЇЇЇ ----------------------------------------ЇЇЇЇЇЇЇ \| Can't modify constant item in scalar assignment at -e line 1, near +"3;" \| BEGIN not safe after errors--compilation aborted at -e line 1. \| Perl 5.16.2 MSWin32-x64-multi-thread -------------------------------------------------------------------- +---ЇЇЇЇЇЇЇ [download] L* There are no rules, there are no thumbs.. Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.	[reply] [d/l]

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Re^2: use constant usage clarification
by Discipulus (Canon) on Oct 31, 2014 at 08:45 UTC

BrowserUK

#(something like:)
perl -MConfig -e "BEGIN{print 'Perl ', map {$Config{$_},' '}qw/version
+ os archname/ }; use constant X = 1/3;print qq(\n),+X,qq(\n)"

  ----------------------------------------ЇЇЇЇЇЇЇ
 | Can't modify constant item in scalar assignment at -e line 1, near 
+"3;"
 |  BEGIN not safe after errors--compilation aborted at -e line 1.
 |  Perl 5.14.2  MSWin32-x86-multi-thread
  --------------------------------------------------------------------
+---ЇЇЇЇЇЇЇ

  ----------------------------------------ЇЇЇЇЇЇЇ
 | Can't modify constant item in scalar assignment at -e line 1, near 
+"3;"
 |  BEGIN not safe after errors--compilation aborted at -e line 1.
 |  Perl 5.20.0  MSWin32-x86-multi-thread-64int
  --------------------------------------------------------------------
+---ЇЇЇЇЇЇЇ

  ----------------------------------------ЇЇЇЇЇЇЇ
 | Can't modify constant item in scalar assignment at -e line 1, near 
+"3;"
 |  BEGIN not safe after errors--compilation aborted at -e line 1.
 |  Perl 5.16.2  MSWin32-x64-multi-thread
  --------------------------------------------------------------------
+---ЇЇЇЇЇЇЇ
[download]

There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.

[reply]
[d/l]