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Pragmas

Perl 5 version 8.9 documentation
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Pragmas

  • attributes - get/set subroutine or variable attributes
  • attrs - set/get attributes of a subroutine (deprecated)
  • autouse - postpone load of modules until a function is used
  • base - Establish an ISA relationship with base classes at compile time
  • bigint - Transparent BigInteger support for Perl
  • bignum - Transparent BigNumber support for Perl
  • bigrat - Transparent BigNumber/BigRational support for Perl
  • blib - Use MakeMaker's uninstalled version of a package
  • bytes - Perl pragma to force byte semantics rather than character semantics
  • charnames - define character names for \N{named} string literal escapes
  • constant - Perl pragma to declare constants
  • diagnostics - produce verbose warning diagnostics
  • encoding - allows you to write your script in non-ascii or non-utf8
  • fields - compile-time class fields
  • filetest - Perl pragma to control the filetest permission operators
  • if - use a Perl module if a condition holds
  • integer - Perl pragma to use integer arithmetic instead of floating point
  • less - perl pragma to request less of something from the compiler
  • lib - manipulate @INC at compile time
  • locale - Perl pragma to use and avoid POSIX locales for built-in operations
  • open - perl pragma to set default PerlIO layers for input and output
  • ops - Perl pragma to restrict unsafe operations when compiling
  • overload - Package for overloading Perl operations
  • re - Perl pragma to alter regular expression behaviour
  • sigtrap - Perl pragma to enable simple signal handling
  • sort - perl pragma to control sort() behaviour
  • strict - Perl pragma to restrict unsafe constructs
  • subs - Perl pragma to predeclare sub names
  • threads - Perl interpreter-based threads
  • threads::shared - Perl extension for sharing data structures between threads
  • utf8 - Perl pragma to enable/disable UTF-8 (or UTF-EBCDIC) in source code
  • vars - Perl pragma to predeclare global variable names (obsolete)
  • vmsish - Perl pragma to control VMS-specific language features
  • warnings - Perl pragma to control optional warnings
  • warnings::register - warnings import function