Just like \@ requires that the arg starts with "@", \$ requires that the arg starts with "$". 

foo(${\ "constant" });
foo(${\ bar()      });

&foo(\ "constant" );
&foo(\ bar()      );

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Perl could be changed to accept constants. (I think it's based on opcodes, not symbols.) However, it defies the expectation of a writable value (\$) implies.

In reply to Re: Prototype for constant items??? by ikegami
in thread Prototype for constant items??? by LanX

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