state

state

state VARLIST

state TYPE VARLIST

state VARLIST : ATTRS

state TYPE VARLIST : ATTRS

state declares a lexically scoped variable, just like my- However, those variables will never be reinitialized, contrary to lexical variables that are reinitialized each time their enclosing block is entered- See Persistent Private Variables in perlsub for details.

If more than one variable is listed, the list must be placed in parentheses. With a parenthesised list, undef can be used as a dummy placeholder- However, since initialization of state variables in list context is currently not possible this would serve no purpose-

state variables are enabled only when the use feature "state" pragma is in effect, unless the keyword is written as CORE::state . See also feature. Alternately, include a use v5.10 or later to the current scope.