c++ - Template constructor fails in MSVC due to name collision of member function with argument type -


the following code snippit fails compile in msvc 18.00.31101 error below succeeds in gcc 4.9.2 , clang 3.6.0. scoping argument type or including struct keyword in declaration resolves error. compiler bug or undefined behavior?

#include <cstdlib>  struct {     int b; };  struct snap {     template<size_t tsize>     snap(const (&)[tsize]) {         // tsize     }      void a() {} };  int main() {     pop[] = { {1}, {2}, {3} };      snap crackle(pop);      return 0; }

.

1> <...>: error c2664: 'snap::snap(const snap &)' : cannot convert argument 1 'a [3]' 'const snap &' 1>          reason: cannot convert 'a [3]' 'const snap' 1>          no constructor take source type, or constructor overload resolution ambiguous

this ill-formed no diagnostic required. [basic.scope.class]/p1:

2) name n used in class s shall refer same declaration in context , when re-evaluated in completed scope of s. no diagnostic required violation of rule.

the name a evaluated in context refers ::a, refers snap::a when re-evaluated in completed scope of snap.


Comments

Post a Comment

Popular posts from this blog

jquery - How do you format the date used in the popover widget title of FullCalendar? -

Image
in fullcalendar, how format date used in popover widget title when clicking '+n more'? code: <div class="fc-popover fc-more-popover"> <div class="fc-header fc-widget-header"> <span class="fc-close fc-icon fc-icon-x"></span> <span class="fc-title">tuesday, april 7</span> ... </div> ... </div> you use daypopoverformat that. determines date format of title of popover created eventlimitclick option. must date formatting string. default value "dddd, mmmm d" english , "ll" other languages.
Read more

asp.net mvc - SSO between MVCForum and Umbraco7 -

i need integrate sso between mvcforum (forum of company) , umbraco7 (manages cms company). however struggling shared authentication work. tried several ways suggested on other threads still not running expected. here did: 1. in mvcforum (forum.mywebsite.com) 1.1. machine key in web.xml: <machinekey validationkey="the same key umbraco7" decryptionkey="the same key umbraco7" validation="sha1" decryption="aes" /> 1.2. authenticate forms in web.xml <forms name="my-sso-auth" protection="all" path="/" timeout="43200" domain="forum.mywebsite.com" loginurl="/members/logon" enablecrossappredirects="true" /> 2. in umbraco7 (news.mywebsite.com) 2.1. machine key in web.xml: <machinekey validationkey="the same key mvcforum" decryptionkey="the same key mvcforum" validation="sha1" decryption="aes" /> 2.2. a...
Read more

Python Tkinter keyboard using bind -

i have problem using bind option can click button in keyboard, , call function once key pressed. tried taking other codes have similar purpose , saw i'm doing pretty same, though still have problem must've missed. thankful if me this. here's code: # -*- coding: utf-8 -*- #imports tkinter import * pil import imagetk, image import time import tkmessagebox #===========================================================================================================================================# #tkinter class class app(frame): def __init__(self, master=none): frame.__init__(self, master) self.pack() #===========================================================================================================================================# #game pieces classes class board: def __init__(self, rows = 7, columns = 6, picture_height = none, picture_width = none): self.rows = rows self.columns = columns self.picture ...
Read more