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Possible Duplicate:
In PHP (>= 5.0), is passing by reference faster?
I wonder if by declaring the parameter pass by reference, the PHP interpreter will be faster for not having to copy the string to the function's local scope? The script turns XML ...
Started by Petruza on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Every time you do thing the unusual way you have to remember run into weird....
You may, which is not the way things normally work.
Passing things by reference can be especially misleading.
It will slow you down in long run.
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Here is what I understand so far: PASS BY VALUE Passing by value means a copy of an argument is passed. Changes to that copy do not change the original.
PASS BY REFERENCE Passing by reference means a reference to the original is passed. changes to the...
Started by Goober on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at stackoverflow):
You can); // OK, foo assigned by SetOne AddTwo(ref....
They both mean 'pass by reference'.
Some parameter scenarios might be:
ref int numYou would never combine ref and out on 1 parameter.
Understand the dynamics of passing either way.
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Interesting there was never any talk of Congress' dismal approval rating when it was actually worse than it is today, and the Democrats had total control of it. We never heard a peep about it until the Dems lost the House, but now it's almost a daily ...
Started by Midnight Marauder on
, 1 posts
by 1 people.
Answer Snippets (Read the full thread at usmessageboards):
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Here's what I want to do:
Given a table
PeopleOutfit (id int primary key, boots int, hat int)
And a stored procedure
UpdateOutfit @id int, @newBoots int = null, @newHat = null
Is there a way to tell whether I called this procedure as
exec UpdateOutfit...
Started by Stanislav Kniazev on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
If the default is null , then maybe you could pass....
My suggestion is to use a default value that you would never pass in as an argument.
My guess is no, you can't tell those two things apart.
Logic to do something different.
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Perl is really good for writing the kind of string/file parsing programs that I usually need to do. What I really love is the insignificant amount of time it takes me to write quick scripts and throwaway code, compared to C/C++/JAVA. However, I want to...
Started by PoorLuzer on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Gt; ", $subs{$sub}(), "\n"; } Benchmark::cmpthese -1, \%subs;
I remember reading in some article (please comment if you can place it) that you can hint perl that you will not modify some variable and optimize and improve the algorithm....
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I've got a project (about 80K LOC) that I'm working on, and I've got nearly a full month of luxury refactoring and feature adding time prior to release so long as I'm careful not to break anything. With that being said, what can I do to improve maintainability...
Answer Snippets (Read the full thread at stackoverflow):
Given that as a goal, here are some things that I would specifically target:
1) Remove duplicate code at the wiki article on Code Smells on this site, its a great place to start!
The key thing to consider of things (or have....
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Hi there.
I was wondering if there was any way to pass parameters dynamically to variadic functions. i.e. If I have a function
int some_function (int a, int b, ...){/*blah*/}
and I am accepting a bunch of values from the user, I want some way of passing...
Started by tommobh on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
}; } void some_function(size_t n_things, struct thing *things, DOUBLE, LONG }; struct thing { enum thing_code code; union { int a; double b; long c; }; }; void....
Void (*print)(struct thing*); union { ...
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Well, the title says it all. When passing a file name to a method, should I use a FileInfo object or a plain file name (string)? Why would I prefer one to the other?
Some of my colleagues like to write method like this:
void Export(FileInfo fileInfo) ...
Started by Martin on
, 11 posts
by 11 people.
Answer Snippets (Read the full thread at stackoverflow):
I think file name....
The abstraction of a File in the argument name what it is .
I think on the class File allow a number of things with the filename.
Point of view - in some ways a FileInfo is a "cleaner" way of expressing the parameter.
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Should there be any problem passing this kind of a collection in WCF ?
class Parent { [DataMember] some data members [DataMember] Child myChild; } class Child : Parent { [DataMember] some more data members [DataMember] Parent myParent; }
Should there ...
Started by Dani on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
{ } [DataContract] class Child : Parent { }
If you're dealing with collections of things, then you might need = true)] [KnownType(typeof(Child))] class Parent { [DataMember] some data members [DataMember] Child myChild; } [DataContract(....
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I have some Java code similar to:
public class Thing { private IPolicy policy; public Thing(IPolicy policy) { this.policy = policy; } public void doSomething() { this.policy.execute(); } }
My question is: is it possible to do this with generics rather...
Started by jjujuma on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
This requires only constructor mechanism or abstraction....
A Thing cannot exist with a policy.
The collections API is probably the canonical example that a Thing always has a policy ie.
The type is (potentially with some constraints).
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