Sponsored Content
Full Discussion: Perl syntax
Top Forums Shell Programming and Scripting Perl syntax Post 302809037 by elixir_sinari on Saturday 18th of May 2013 01:26:35 AM
Old 05-18-2013
Technically, the -> is a binary infix dereference operator. In your case, since the right side of the operator is neither an array/hash subscript nor a subroutine argument list, it implies a method call with site being the method name and $tz could be an object reference or a class/package name.

The => operator is just a fancy comma. You can use it almost anywhere a , is used. Since this fat-arrow operator has the feature of autoquoting any Perl identifier to its immediate left (and also since it is eye-friendly), it is the preferred way to separate keys and values in a hash.

Last edited by elixir_sinari; 05-18-2013 at 04:32 AM..
This User Gave Thanks to elixir_sinari For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Perl command syntax for C:\dir

Hi Everyone, Perl command syntax that would display my ... C:\dir .... Regards, asabzevari (1 Reply)
Discussion started by: asabzevari
1 Replies

2. UNIX for Advanced & Expert Users

perl explain syntax !!!

hi all i was going through some perl code i came across this line and i am not getting what is exactly going on .. $$this{localtion} = GetName->GetVarName("EXE_DIR") ; what is the red part doing in above code (2 Replies)
Discussion started by: zedex
2 Replies

3. Shell Programming and Scripting

perl version for syntax errors

All, Does it matter what perl verios your running when you get syntax errors? on version 5.6.1 the code works fine, but on 5.8.0 the code gets errors? #!/usr/bin/perl #use strict; #use warnings; my $mess = 'messages'; my $mess1 = 'messages.1'; my $mess2 = 'messages.2'; my... (13 Replies)
Discussion started by: bigben1220
13 Replies

4. Shell Programming and Scripting

perl syntax help

Im new at scripting and im trying to write a script using perl that will make sure there are 2 command line integer arguments and then check if the 2nd argument is greater than the first. i believe im close but still receive my error message even when i have 2 arguments and the second part gives me... (6 Replies)
Discussion started by: livewire06
6 Replies

5. Shell Programming and Scripting

PERL Syntax Errors

Hi, I am a newbie to PERL and working on a script. When running it I get a lot of compilation errors. The actual command in the program (which is within a case structure) is given below # This gives the actual count of inquires from a log file (It works fine when I type this on the... (2 Replies)
Discussion started by: nurani
2 Replies

6. Shell Programming and Scripting

Perl syntax that I don't understand.

I'm just trying to confirm that I understand someone's code correctly. If someone has code that says: $foo ||= mysub(); I'm assuming that it means if $foo is nothing or undef, then assign it some value via mysub(). If I'm wrong on this, please let me know. Also, what's the difference... (4 Replies)
Discussion started by: mrwatkin
4 Replies

7. Programming

Syntax error in perl program.

Hi, i am running this code but i am getting syntax error #!/usr/bin/perl use warnings; use strict; use XML::LibXML; use XML::LibXML::Reader; use Data::Dumper; my $file; open( $file, 'DTC_Specification_transformed.xml'); my $reader = XML::LibXML::Reader->new( IO => $file ) or die... (1 Reply)
Discussion started by: veerubiji
1 Replies

8. Programming

Perl syntax question

Hallo everybody, I have a following problem - I'm doing a map funciont to fill in a HTML table and I want to use some radiobutton groups. Unfortunatelly, they are grouped by names, so I have to add some "counter" that will divide one row from another, and I'm using CGI.pm for generating the... (3 Replies)
Discussion started by: duskos
3 Replies

9. UNIX for Dummies Questions & Answers

Perl syntax

Query with perl syntax Aim: is to change a perl script to use a new file I was required to replace - entries \"$entries\" with -lib <full_path_to_filename> So in the code detector.pm sub rundetector { my $class = shift; mkdir($resultDirectory); my... (3 Replies)
Discussion started by: sa@@
3 Replies

10. Shell Programming and Scripting

A Perl Syntax Question.

Greetings! Here's what I believe is a "simple one" for the community tonight ;) What I'm trying to do is assign a "true/false" value to a variable depending upon whether a named process (some-process) exists; and then test for this value in the succeeding logic. I banged my head against the... (2 Replies)
Discussion started by: LinQ
2 Replies
std::slice_array< _Tp >(3cxx)											     std::slice_array< _Tp >(3cxx)

NAME
std::slice_array< _Tp > - SYNOPSIS
Public Types typedef _Tp value_type Public Member Functions slice_array (const slice_array &) void operator%= (const valarray< _Tp > &) const template<class _Dom > void operator%= (const _Expr< _Dom, _Tp > &) const void operator&= (const valarray< _Tp > &) const template<class _Dom > void operator&= (const _Expr< _Dom, _Tp > &) const void operator*= (const valarray< _Tp > &) const template<class _Dom > void operator*= (const _Expr< _Dom, _Tp > &) const void operator+= (const valarray< _Tp > &) const template<class _Dom > void operator+= (const _Expr< _Dom, _Tp > &) const void operator-= (const valarray< _Tp > &) const template<class _Dom > void operator-= (const _Expr< _Dom, _Tp > &) const void operator/= (const valarray< _Tp > &) const template<class _Dom > void operator/= (const _Expr< _Dom, _Tp > &) const void operator<<= (const valarray< _Tp > &) const template<class _Dom > void operator<<= (const _Expr< _Dom, _Tp > &) const slice_array & operator= (const slice_array &) void operator= (const valarray< _Tp > &) const void operator= (const _Tp &) const template<class _Dom > void operator= (const _Expr< _Dom, _Tp > &) const void operator>>= (const valarray< _Tp > &) const template<class _Dom > void operator>>= (const _Expr< _Dom, _Tp > &) const void operator^= (const valarray< _Tp > &) const template<class _Dom > void operator^= (const _Expr< _Dom, _Tp > &) const void operator|= (const valarray< _Tp > &) const template<class _Dom > void operator|= (const _Expr< _Dom, _Tp > &) const Friends class valarray< _Tp > Detailed Description template<typename _Tp>class std::slice_array< _Tp > Reference to one-dimensional subset of an array. A slice_array is a reference to the actual elements of an array specified by a slice. The way to get a slice_array is to call operator[](slice) on a valarray. The returned slice_array then permits carrying operations out on the referenced subset of elements in the original valarray. For example, operator+=(valarray) will add values to the subset of elements in the underlying valarray this slice_array refers to. Parameters: Tp Element type. Definition at line 124 of file slice_array.h. Author Generated automatically by Doxygen for libstdc++ from the source code. libstdc++ Tue Nov 27 2012 std::slice_array< _Tp >(3cxx)
All times are GMT -4. The time now is 09:35 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy