Why does this not work? How can I make it work? That is, how can I make gu accessible inside my decorated function? def decorate(f): def new_f(): def gu(): pass f() return new_f @decorate def fu(): gu() fu() Do I need to add gu to a dictionary of defined functions somehow? Or can I add gu t...
How Do I capture a variable? Alternatively, can I store a reference to an object reference? Normally, a method can alter a variable outside of it using ref keyword. void Foo(ref int x) { x = 5; } void Bar() { int m = 0; Foo(ref m); } This is clear and straight-forward. Now let's consider a class to achieve the same thin...
It is very common in Ruby to see methods that receive a hash of parameters instead of just passing the parameters to the method. My question is - when do you use parameters for your method and when do you use a parameters hash? Is it right to say that it is a good practice to use a parameter hash when the method has more than one or tw...
I have a view controller which creates multiple subviews on top of it. All subviews and the view controller accept touches. How can i communicate the touch point information to all the subviews on the screen? Keep in mind that each subview covers the entire screen so after a few additions its a bit like pages in a book. That is, any s...
Hi I have a simple question. I have a main form, and then a startup form from where I can select a new 3D model to generate. When selecting a new 3D model from the startup form, I want to check first whether the previous model I worked on has been saved or not. I simply want to pass a boolean value from the main form to the startup form...
Here is a particular scenario that I have been unclear about (in terms of scope) for a long time. consider the code #include <stdio.h> typedef struct _t_t{ int x; int y; } t_t; typedef struct _s_t{ int a; int b; t_t t; }s_t; void test(s_t & s){ t_t x = {502, 100}; s.t = x; } int main(){ s_t s; test(s); printf("value i...
Couple questions on creating a mac installer. 1) Should any frameworks from /Developer/SDKs/ be included/packaged into the application file? 2) When we normally launch the executable we pass it an argument to point it at our servers, is there a way to encode this information into the Unix Executable File found in Contents/MacOS/? Than...
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 those values into the function: some_function (a,b, val1,val2,...,valn) I don...
How would I execute a method with an argument in my model based on the URL? Ie, http://server/MyAction_Arg.action maps to MyClass.MyMethod(Arg)? I tried this: <action name="MyAction_*" method="MyMethod({1})" class="example.MyClass"> <result>page.jsp</result> </action> but I get java.lang.NoSuchMethodException at runtime ...
I'm trying to write some reasonably generic networking code. I have several kinds of packets, each represented by a different struct. The function where all my sending occurs looks like: - (void)sendUpdatePacket:(MyPacketType)packet{ for(NSNetService *service in _services) for(NSData *address in [service addresses]) ...
typedef struct unit_class_struct { char *name; char *last_name; } person; int setName(person *array) { array[0].name = strdup("Bob"); array[1].name = strdup("Dick"); return 1; } int setLastName(person *array) { array->last_name = strdup("Sanchez"); array++; array->last_name = strdup("Clark"); re...
I am trying to pass a structure array pointer and a pointer to a structure array pointer into a function and then have it modified rather than using a return. This example code is indeed pointless, its just a learning example for me. Basically I want to create array[0]...array[1]..array[2] and so on and have a pointer that points to t...
This is the provided function template I'm trying to use: template <class Process, class BTNode> void postorder(Process f, BTNode* node_ptr) { if (node_ptr != 0) { postorder( f, node_ptr->left() ); postorder( f, node_ptr->right() ); f( node_ptr->data() ); } } This is my call, and the function I'm passing: v...
I have a Rails app that repeatedly talks to another Web server through a wrapper, and I'd like to stick the wrapper in a Singleton class so it's not recreated for every request. Easy enough, I thought: class AppWrapper < Wrapper include Singleton end ... wrapper = AppWrapper.instance "url" Only it doesn't work: wrong number of arg...
I would like a jQuery function to know which link was clicked to call it, i.e. I would like the link's id value to be passed to the jQuery function. Is this possible? If so what is the neatest way to do it. ...
I have the following two functions: $(".content").click( function() { var id = this.id; $.get("InfoRetrieve", { theid:id }, addContent ); }); function addContent(data){ $("#0001").append(data); } I need to pass the 'id' variable from the first function to the addContent function, I don't quite get how this works. In the a...
Can we pass arguments to a REXX program from JCL? I suppose, JCL PARM can be used as we use for passing arguments to COBOL programs.. Do put your ideas here... ...
What should be happening: user navigates to URI, routes.php grabs the State and sends it to the controller, the controller returns some info from a database query. Pretty basic stuff. The problem: the URI isn't passing the variable to the controller. I'm being told Missing argument 1 for States::state_summary I can set a default f...
How do I pass all the arguments of one shell script into another? I have tried $*, but as I expected, that does not work if you have quoted arguments. Example: $ cat script1.sh #! /bin/sh ./script2.sh $* $ cat script2.sh #! /bin/sh echo $1 echo $2 echo $3 $ script1.sh apple "pear orange" banana apple pear orange I want it to prin...
Consider the functions sort and array_reverse. Why does one modify the variable passed, whereas the other return a new version? $a = array(3, 1, 2); sort($a); // $a === array(1, 2, 3) array_reverse($a); // $a === array(1, 2, 3) sort could just as easily been written to return a modified copy of the argument, and vice-versa for arra...