Is it possible in standard C++ to print a variable type. I think this is being addressed in C++0x but not sure it already exists. I would like something like this: int a = 12; cout << typeof(a) << endl; That would print: int ...
I want to do this in Actionscript: typeof(control1) != typeof(control2) to test if two objects are of the same type. This would work just fine in C#, but in Actionscript it doesnt. In fact it returns 'object' for both typeof() expressions because thats the way Actionscript works. I couldn't seem to find an alternative by looking in t...
Hi, I'm trying to get a class memeber variable list at run time. I know this probably using typeof and reflections. but can't find an example. Please someone shed light for me. Here is pseudo code example: Class Test01 { public string str01; public string str02; public int myint01; } I want something like this (pseudo code): Te...
I thought this would be as easy as: if(typeof(Array.push) == 'undefined'){ //not defined, prototype a version of the push method // Firefox never gets here, but IE/Safari/Chrome/etc. do, even though // the Array object has a push method! } And it does work fine in Firefox, but not in IE, Chrome, Safari, Opera, they return all pr...
I need to test whether the value of a form's onsubmit is a function. The format is typically onsubmit="return valid();". Is there a way to tell if this is a function, and if it's callable? Using typeof just returns that it's a string, which doesn't help me much. EDIT: Of course, I understand that "return valid();" is a string. I've ...
Hello people, I am trying to convet the following code from C# to Vb using 3.5 framework. Here is the code in C# that I am having trouble with. MethodInfo mi = typeof(Page).GetMethod("LoadControl", new Type[2] { typeof(Type), typeof(object[]) }); I thought it would be like this in VB; Dim mi As MethodInfo = GetType(Page).GetMethod("...
When attempting to compile mpd with Sun Studio compiler: "client.c", line 438: warning: implicit function declaration: typeof I tracked down the offending lines of code, in dlist.h: #define list_for_each_entry(pos, head, member) \ for (pos = list_entry((head)->next, typeof(*pos), member); \ ...
Given a simple inheritance hierarchy: Person -> Student, Teacher, Staff Say I have a list of Persons, L. In that list are some Students, Teachers, and Staff. Using LINQ and C#, is there a way I could write a method that could retrieve only a particular type of person? I know I can do something like: var peopleIWant = L.OfType< Teache...
I want to work around the fact that my WCF servicelayer can not handle a generic method like this: public void SaveOrUpdateDomainObject<T>(T domainObject) { domainRoot.SaveDomainObject<T>(domainObject); } so I built this workaround method instead public void SaveOrUpdateDomainObject(object domainObject, string typeName) { ...
Say I have a function like so: function foo(bar) { if (bar > 1) { return [1,2,3]; } else { return 1; } } And say I call foo(1), how do I know it returns an array or not? ...
I will start by explaining my scenario in code: public class A { } public class B : A { } public class C : B { } public class D { } public class Test { private A a = new A ( ) ; private B b = new B ( ) ; private C c = new C ( ) ; private D d = new D ( ) ; public Test ( ) { // Evaluates to "false" ...
I am having trouble writing a typeof statement which would be using a variable from a config file the code is like this Type t = new typeof ("My.other.class" + configValue[0]); configValue being the dynamic value I get from the app.config file. The error I get is "type expected" it is fine if I type out the class directly so I am as...
How to simulate C# typeof-command behavior in C++? C# example: public static PluginNodeList GetPlugins (Type type) { ... } Call: PluginManager.GetPlugins (typeof(IPlugin)) How to implement this using C++? Maybe QT or Boost libraries provide a solution? What about the case if you want to implement .GetPlugins(...) in a way that i...
I'm writing some JavaScript with three classes, one for Roofs, one for Garages, and one for Houses. The house class takes two arguments to its constructor, a Roof and a Garage. When I run this code I get: can not construct object [Break on this error] throw new Error('can not construct object');\n in Firebug even though the objects are...
Given int a;, I know that the following returns the largest value that a can hold. numeric_limits<int>::max() However, I'd like to get this same information without knowing that a is an int. I'd like to do something like this: numeric_limits<typeof<a>>::max() Not with this exact syntax, but is this even possible using ISO C++? Thank...
Hi, short example: #include <boost/typeof/typeof.hpp> #include <boost/proto/core.hpp> using namespace boost; template<class T, class U> BOOST_TYPEOF_TPL(T() + U()) add2(const T& t, const U& u) { return t + u; }; int main(){ typedef BOOST_TYPEOF(add2(2.5, 1.5)) type; // get type -> works BOOST_STATIC_ASSERT((is_same...
We can get the type returned by function in gcc using the typeof operator as follows: typeof(container.begin()) i; Is it possible to do something similar for functions taking some arguments, but not giving them? E.g. when we have function: MyType foo(int, char, bool, int); I want to retrieve this "MyType" (probably using typeof ope...
I have a list in which i want to be able to put different types. I have a function that returns the current value at index: void *list_index(const List * list, int index) { assert(index < list->size); return list->data[index]; } In the array there are multiple types, for example: typedef struct structA { List *x; char *y; Lis...
Hello. I have a function Public MyObj as Object Public Function Test(t as Type) as Boolean Return TypeOf MyObj is t ' does not work End Function Thanks. * EDIT ==================================================================== For clarity I will use a complete example, a little modified that initially was thought. I use an int...
UPDATE: Didn't give a great example. Hopefully it's better now. Is there a better way than this: (typeof(TRepository) == typeof(UserClass)) Here's the use in writing: public static IBaseRepository<TClass> GetRepository<TClass>() where TClass : IDataEntity { IBaseRepository<TClass> repository = null; if (typeof(TClass) == type...