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I always wonder if it's correct to say that something like THIS is a "pointer", rather than a "variable":
NSString *fooStr = ...;
Would you call "fooStr" a "pointer" rather than a "variable"? Or is it okay to say both here?
Started by openfrog on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Short answer:
A pointer is a variable....
A variable's data type is what you set it to.
A pointer's data type is always an address.
So you CAN call a pointer a variable, but calling it a pointer is more specific.
The data itself.
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I would like to know whats faster. Help me out.
I have a variable declared in a Method like so:
public static Regex FindNumber() { return new Regex(@"\d+", RegexOptions.IgnoreCase | RegexOptions.Compiled); }
As you can see it returns a Regular Expression...
Started by Scott on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
To you is why are you using a function call to return the same string over and over? Why don't you just declare a real variable?
Like,
private static Regex _findNumber = new Regex(@"\d.
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How does one extract the name of a variable in a function that is called from another function in R?
My question is how to extract the name of a variable from a function that is called in another function in R?
To illustrate, here is an example:
a <- function(variable) { print(deparse(substitute(variable))) internala(substitute(variable)) } internala...
Started by Maria on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Function(variable) { print(deparse(substitute(variable))) my_command <- paste('internala(',substitute(variable),')',sep = '') eval(parse(text = my_command)) } internala <- function(variableXX argument of an internala function....
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Ask your Facebook Friends
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I'm using the ajax technique in combination with php and I want to know how to get the return variable from the function that is called by onreadstatechange.
A java function is called onsubmit to then call a php script to verify some things in my database...
Started by payling on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
Is the following:
1) Set the form onsubmit to simply call snappyajaxfunction();
2) In stateChanged.
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Hello,
my Python class has some variables that require work to calculate the first time they are called. Subsequent calls should just return the precomputed value.
I don't want to waste time doing this work unless they are actually needed by the user....
Started by Richard on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Every time after, age exists so __getattr__ doesn't get called
Yes you can use.
To access age.
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I've got an application that's using a static library I made. One .cpp file in the library has a static variable declaration, whose ctor calls a function on a singleton that does something- e.g. adds a string.
Now when I use that library from the application...
Started by B. on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
There are no guarantees in which order static variable initializers in different files get called, so if your singleton isn't initialized yet when your static variable in the library is being is to have some sort of an explicit ....
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I'm having difficulty accessing a $_SESSION variable.
I have session_start() at the beginning of the file.
I'm using jQuery uploadify and it calls a php backend file, which can't access $_SESSION variables, although other files outside could.
Could it...
Started by noname on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
The most practical way to sidestep this is to set it as a flashvar when embedding the flash and manually send it along... .
In certain browsers (firefox iirc) "special" calls, such as file uploads and amf do not always send along the session cookie.
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Hello. I know this question was answered before, but I cant still handle it with my code. Please can someone pointing out how can I fix it on this particular code. Id like to call trace(); but dont know where to call new trace. I tried different stuff...
Started by jim7 on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
You need ....
That means you have to call trace() on an instance of Matrix .
And your trace() method is a non-static method of the Matrix class .
call A.trace()
use lower-case names for variables and fields your main method is static.
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I'm confused about these two keywords and the way to use them in PHP5. I think that "this" is used for instanced objects (not static) while "self" is referring to the object itself, not an instance of it and thus used within static objects. Right?
Now...
Started by Tom on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
YourClass::staticFunction is being called through an instantiated....
This when not in object context
This results in a fatal error because foo() was called statically and could be called without an instance of the object being created.
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Hi, everyone,
what is the difference between global variable and file variable in C++?
Thanks!
Answer Snippets (Read the full thread at stackoverflow):
When you declare a file-local....
When a C object file requests a symbol called ' hello case.
When you declare a global variable in your C source file); }
hello and printMessage are exported.
To a function or variable (in most cases).
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