Possible Duplicate: When pass-by-pointer is preferred to pass-by-reference in C++? Hello everyone, What do you consider a better programming practice: passing objects as pointers or references to functions. What do you do for input validation? Thanks. ...
Hello, Have a look a this simple example. I don't quite understand why o1 prints "Hello Alex" twice. I would think that because of the default self.a is always reset to the empty list. Could someone explain to me what's the rationale here? Thank you so much. class A(object): def __init__(self, a=[]): self.a = a o =...
I want to have a class property that allow for an expression to take place on the right side of the equals sign. All versions of PHP choke on the following code, but it is written in this way to allow for easier extendibility in the future. /* Example SDK Class */ class SDK { /* Runtime Option Flags */ // Strings # 0: Makes...
From method name I would like know its signature i.e. def myMethod(firt, second, third='something'): pass from myMethod name is possible have samenthig like that myMethod(firt, second, third='something') ...
I currently have a view (Drupal 6 using Views2) that properly aggregates a custom content type (videos) and filters them for a page display. When I create a block display, it previews the results in live preview just great, but when i go to the page expecting to see the block it doesn't appear. I'm fairly certain the argument I'm attem...
Hi there, My powershell script takes the following parameter: Param($BackedUpFilePath) The value that is getting passed into my script is: "\123.123.123.123\Backups\Website.7z" I have another variable which is the location I want to extract the file: $WebsiteDeploymentFolder = "C:\example" I am trying to extract the archive with t...
I have a function, we'll call it funcA that returns an object. I want to pass that object to funcB. Can I do this? funcB(funcA()); so that funcA() is called first and the results are passed to funcB()? ...
I want to understand about variables, that has been used in returning function. This is example code Prototype = {} Prototype.F = { bind: function() { var args = arguments, __method = args.shift(), object = args.shift(); return function() { return __method.apply(object, args.concat(arguments)); } } } func...
Is there a command that not just echos it's argument but also escapes them if needed (e.g. if a argument contains white space or a special character)? I'd need it in some shell magic where instead of executing a command in one script I echo the command. This output gets piped to a python script that finally executes the commands in a mo...
Hi Everybody, I attended a technical interview a few days ago, and I was asked How does the C compiler implments function with Variable number of arguments? How does it pass the on the stack? Does anyone know or can explian that? Thanks, Dan ...
I have a bunch of files in a directory, each with one line of text. I want to cat all of these files together (all the one liners) into a single, large file. However, when I use cat there are too many arguments. How can I get around this? ...
Need to create a class that will do all things as the "merge" function. In class i will change, process and add new arguments. def merge(*arg, **kwarg): # get decorator args & kwargs def func(f): def tmp(*args, **kwargs): # get function args & kwargs kwargs.update(kwarg) # merge two dictionaries r...
I'm trying to use a relative path in the -output compiler argument, here's what I've tried (with and without quotes): -o="./deploy/file.swf" -o="/./deploy/file.swf" -o="./file.swf" -o="/./file.swf" -o="file.swf" -o="file.swf" None of these attempts yields a new file, it's as if they are ignored. The deploy directory is in the roo...
I'm reflecting over a class (in a unit test of said class) to make sure its members have all the required attributes. To do so, I've constructed a couple of helpers, that take an Expression as an argument. I do some checks for it, and take slightly different actions depending on what type of Expression it is, but it's basically the same....
I'm building a simple interpreter in python and I'm having trouble handling differing numbers of arguments to my functions. My current method is to get a list of the commands/arguments as follows. args = str(raw_input('>> ')).split() com = args.pop(0) Then to execute com, I check to see if it is in my dictionary of command-> code mapp...
Is it possible to set a default value for a variable argument list in Python 3? Something like: def do_it(*args=(2, 5, 21)): pass I wonder that a variable argument list is of type tuple but no tuple is accepted here. ...
Hello all, I have a simple question: How do I detect if a parameter passed to my javascript function is an array? I don't believe that I can test: if (typeof paramThatCouldBeArray == 'array') So is it possible? How would I do it? Thanks in advance. ...
I'm writing a cPanel postwwwact script, if you're not familiar with the script its run after a new account is created. it relies on the user account variable being passed to the script which i then use for various things (creating databases etc). However, I can't seem to find the right way to access the variable i want. I'm not that good...
Hi all, Is there a PHP function to find the number of parameters to be received/passed to a particular function? ...
Given that I have a pointer to a function (provided by dlsym() for example) and a linked list of typed arguments, how can I construct a C function call with those arguments? Example: struct param { enum type { INT32, INT64, STRING, BOOL } type; union { int i32; long long i64; char *str; bool b; } value; struct param *next; };...