Error : expected a ";"

Question

Well this is a silly question but I have this error :

#include <unordered_set> 
std::unordered_set<std::string> ValidValues **{**"one", "two", "three"};

Error : expected a ";" appears at the first bracket. Exacty the same with a "set".

Restarted Visual Studio 2010 and the computer.

According to [this](https://wiki.apache.org/stdcxx/C%2B%2B0xCompilerSupport), you'll need Visual C++ 11.0 (i.e. 2012) or later to use list initialisation. — Mike Seymour, Jan 28 '14 at 10:42
How is this *so* downvote-worthy? It's not actually a missing `;`, it's the compiler obscurely saying "I don't support this part of C++11 yet." — Angew is no longer proud of SO, Jan 28 '14 at 10:49
This isn't a bad question per se, indeed. It has all the necessary info. And the close votes are completely mad. — rubenvb, Jan 28 '14 at 10:50
Thanks Angew. I expected a bit this kind of reaction ;) BUt I cannot invent the reason Including string didnt change anything Mike : OK I'm gonna change — Mr. Starck, Jan 28 '14 at 10:51

rubenvb · Accepted Answer · 2014-01-28T10:59:15.837

3

This works:

#include <string>
#include <unordered_set> 
std::unordered_set<std::string> ValidValues {"one", "two", "three"};

MSVS2010/2012 does not support the language feature called list initialization, wich is what you are doing.

edited Jan 28 '14 at 10:59

answered Jan 28 '14 at 10:48

rubenvb

Doens't compile with VS 2012 – Mr. Starck Jan 28 '14 at 10:56
@Mr.Starck You're right, the 2012 November CTP added language support for them, but didn't modify the library to add the `std::initializer_list` constructors, and so 2013 it is. – rubenvb Jan 28 '14 at 11:00

1 Answers1