C++: inheriting overloaded non-virtual method and virtual method both with the same name causes problem -


I am trying to get two equally named designated methods for the same category with different parameter lists . One of them is virtual and override in the derived class, the other one is non-virtual. By doing so, I receive a compilation error while trying to access the non-virtualization of the base class from the client object I received.

Here is the code snippet 

  class base {public: void f () {cout & lt; & Lt; "[Base :: f ()]" & lt; & Lt; Endl; } Virtual Zero (int arg) {cout & lt; & Lt; "[Base: F (" <<

generates the following compile error:

Error: No matching function to call for 'Deriv :: f ()' function: Note: Candidates are: Virtual Zero Deriv :: f (int)

I am not an expert in C ++, but so far I have been right in making this assumption that members Methods can be completely separated by their signature, non-virtual method base :: F () should not be override and Should be accessible. Am I wrong with this?

Here are some interesting / additional comments:

    - Overriding method Deriv :: f (int arg) can also be non-virtual; The error happens in any way
    - the error disappears / can be intruded ...
      ... by casting the deriv object for the base class
      ... when not the base Deriv in override :: f (int arg)
      ... "base :: f;" For the public part of Deriv

Therefore, because I already know how to avoid the error of this compilation, I mainly use why Interested in this error! Please help me highlight that ...

Thanks Advanvce! Emme

In the Deriv , add it: 

  Base :: F; In addition to the link provided by @DumbCoder, you can find more details in response to a similar question:

-

Comments

Post a Comment

Popular posts from this blog

Eclipse CDT variable colors in editor -

I hope this is a good question to ask here. This programming is related, so I thought it would be better than the superuser, so I am using the CDT C ++ Eclipse plugin. I know how the editor changes colors for some things But is there a way to do that all the variables are different colors? For example in KDEValue, it sets the local variables and square variables in different colors and bold square squares. Can I copy it to CDT? Eclips provides some level of color customization for text editor syntax You can see it on the following: There are many elements, including the Window> Preferences> C / C ++> Editor> Syntax color code that can be changed, assembly, Comments, Preprocessor and Doxian Under the code, it is possible to change the color of some variable types, such as global variables, local variable announcements, local variable references, and parameter variables. But I do not think the code is capable of changing the color of each variable declared....
Read more

AJAX doesn't send POST query -

$ (दस्तावेज़) .ready (function () {function ajaxselectrss (rssurlvar) {var ajaxRequest; // वेरिएबल जो अजाक्स को संभव बनाता है! कोशिश करें कि {// ओपेरा 8.0+, फ़ायरफ़ॉक्स, सफारी अजाक्स अनुरोध} = नया एक्सएमएलएचटीपीआरइवेस्ट ();} कैच (ई) {// इंटरनेट एक्सप्लोरर ब्राउज़र्स {ajaxRequest = new ActiveXObject ("Msxml2.XMLHTTP");} पकड़ो (ई) {try {ajaxRequest = new ActiveXObject ("Microsoft.XMLHTTP");} कैच (ई) {// कुछ गलत चेतावनी ("आपका ब्राउज़र तोड़ दिया!"); वापसी झूठी;}}} // एक बनाएं फ़ंक्शन जो सर्वर से भेजे गए डेटा प्राप्त करेंगे ajaxRequest.onreadystatechange = function () {if (ajaxRequest.readyState == 4) {var ajaxDisplay = document.getElementById ('news'); ajaxDisplay.innerHTML = ajaxRequest.responseText;}} / / Var rssurlvar = $ (this) .attr ("title"); var queryString = "rurl =" + rssurlvar; var urltofile = "rssget.php"; ajaxRequest.open ("पोस्ट", urltofile, सच); ajaxRequ Est.setRequestHeader ("सामग्री-प्र...
Read more

wpf - Custom Message Box Advice -

Well, I'm using a custom window box that comes with some custom control boxes that accompany the text The producers who are displayed are called. I have a defined event, which has been subscribed through the original class, it gets burnt when clicking on the button. However, I can not see how to use it effectively, I would like to return one yes, whether yes or not, but obviously my code will continue to execute, so this Below is some example code to clarify the problem that the method has subscibed by clicking on the button. Message box window Public partial class custom message box: window {public representative message messagebox object sender, event events e); Public event messagebox handler messagebox document; Public Customs Box () {Initial group (); } Public Customsbox (String Message) {InitializeComponent (); This.txtdescription.Text = Message; } Public Customsbox (String Message, String Title, String First BTNtext) {Initialization (); This.lbltitle.Content =...
Read more