When reading over some perl code in a software document, I came across an assignment statement like this
$PATH = ${PROJECT}/......./....
In this particular form of scalar variable assignment, what does the curly braces operators do ? Also, what is the benefit in doing scalar assignment this... (3 Replies)
When i tyr this, it gives me a syntax error...i tried removing quotes,removing spaces,replacing -eq with '='.. Can somebody suggest that is the problem?
if ]; then (4 Replies)
Hi,
I am trying to compile a program (not coded by me), and i'm getting this error:
203: error: lvalue required as left operand of assignment
As you may be guessing, the program doesn't compile, the line number 203 is the following:
... (2 Replies)
Hello everyone!
Suppose that I have something like this
A a;
a.mem=new int;
A b = a;
where
class A {
public:
int * mem;
A() : mem(NULL) {
}
~A() {
if (mem!=NULL)
delete mem; (1 Reply)
z < 0 ? z= z + 2*r*cos(theta) : z= z - 2*r*cos(theta);
Does anyone know what is wrong here?
I've got compiler msg:
lvalue required as left operand of assignment
All variables are "double". I'm using gcc compiler (but I don't think that matters) (5 Replies)
Hey all. I've been working on some fun with C and decided to write a Rock Paper Scissors game. The problem is, that when I try to compile the file, it gives "lvalue required as left operand of assignment" error. The error line is here:
for ((point1=0 && point2=0); ((point1=3) || (point2=3));... (4 Replies)
1. After trying to compile code error is given Lvalue required as left operand of assignment.
2. Relevant commands, code, scripts, algorithms:
if , else if
3. The attempts at a solution (include all code and scripts):
/*
File: incircles.cpp
Created by: James Selhorst
... (2 Replies)
Hi,
In the following code,
class A {
public:
void operator=(const A& rhs) {
if (this == &rhs) cout << "self-assigned";
}
};
class B {
A a; // should not be a pointer member, (i.e) A* a
};
int main() {
B b;
b = b; // Ans: self-assigned
}
I am really... (5 Replies)
Hi,
I'm new to the Ash shell so my apologies if this is well known. In normal maths and other shells and languages I've used, the modulo operator always returns a positive remainder. For example see this discussion (first post so I can't hyperlink it):
... (11 Replies)
Discussion started by: FleetFoot
11 Replies
LEARN ABOUT DEBIAN
ppi::statement::variable
PPI::Statement::Variable(3pm) User Contributed Perl Documentation PPI::Statement::Variable(3pm)NAME
PPI::Statement::Variable - Variable declaration statements
SYNOPSIS
# All of the following are variable declarations
my $foo = 1;
my ($foo, $bar) = (1, 2);
our $foo = 1;
local $foo;
local $foo = 1;
LABEL: my $foo = 1;
INHERITANCE
PPI::Statement::Variable
isa PPI::Statement::Expression
isa PPI::Statement
isa PPI::Node
isa PPI::Element
DESCRIPTION
The main intent of the "PPI::Statement::Variable" class is to describe simple statements that explicitly declare new local or global
variables.
Note that this does not make it exclusively the only place where variables are defined, and later on you should expect that the "variables"
method will migrate deeper down the tree to either PPI::Statement or PPI::Node to recognise this fact, but for now it stays here.
METHODS
type
The "type" method checks and returns the declaration type of the statement, which will be one of 'my', 'local', 'our', or 'state'.
Returns a string of the type, or "undef" if the type cannot be detected (which is probably a bug).
variables
As for several other PDOM Element types that can declare variables, the "variables" method returns a list of the canonical forms of the
variables defined by the statement.
Returns a list of the canonical string forms of variables, or the null list if it is unable to find any variables.
symbols
Returns a list of the variables defined by the statement, as PPI::Token::Symbols.
TO DO
- Write unit tests for this
SUPPORT
See the support section in the main module.
AUTHOR
Adam Kennedy <adamk@cpan.org>
COPYRIGHT
Copyright 2001 - 2011 Adam Kennedy.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
The full text of the license can be found in the LICENSE file included with this module.
perl v5.10.1 2011-02-26 PPI::Statement::Variable(3pm)