How to initialize a vector of pair when it is typedef-ed?

Asked May 26 '17 at 19:06

Active May 26 '17 at 22:30

Viewed 972 times

I am starting to learn C++ here so pardon me if I am asking noob questions. My problem is that I cannot initialize my vector of pair of strings.

#include <assert.h>
#include <iostream>
#include <string>
#include <vector>

typedef std::vector<std::pair<std::string, std::string> > pair_of_strings;
 
int main()
{
pair_of_strings test1{
        {"hello", "world"},
        {"captain", "america"}};

return 0;
}

I am getting the following errors:

C:\Documents and Settings\support\Test.cpp(15) : error C2601: 'test1' : local function definitions are illegal
C:\Documents and Settings\support\Test.cpp(15) : error C2063: 'test1' : not a function

edited May 26 '17 at 22:30

Toribio

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asked May 26 '17 at 19:06

Aryah T

Cannot reproduce. – user2296177 May 26 '17 at 19:08
It compiles with no problems under GCC 6.3.0. – Daniel Schepler May 26 '17 at 19:08
1

Which version of Visual C++ are you using? – Some programmer dude May 26 '17 at 19:09
2

Works for me too. But you should use `#include ` instead of `#include `. – Fred Larson May 26 '17 at 19:09
[No repro](http://coliru.stacked-crooked.com/a/5a3fa8cb8db6f869) – πάντα ῥεῖ May 26 '17 at 19:09
I am using Microsoft Visual C++. – Aryah T May 26 '17 at 19:13
1

And which *version* of it? Which *release*? 2017? 2015? 2013? Something older? I matters because older versions didn't support the C++11 standard (or later, of course) and so can't handle initializer lists like yours for the `test1` variable. – Some programmer dude May 26 '17 at 19:19
Of which there are, I think, 15 major versions and countless service packs and patches. Which version of Visual Studio you are using may matter. – user4581301 May 26 '17 at 19:19
Works for me on msvc. Did you mistype some parentheses in your code, but not put them here? – Kenny Ostrom May 26 '17 at 19:19
3

btw the `typedef` is a red herring. A typedef creates an alias that behaves exactly as if you had typed the original type. – 463035818_is_not_an_ai May 26 '17 at 19:21
Thank you for all your inputs. I was using MV C++ 6.0 1994-98 @_@ I tried online GNU compiler and now works fine. – Aryah T May 26 '17 at 19:36
Would recommend declaring `using namespace std;` on top .. makes code more readable and less cryptic : `typedef vector > pair_of_strings;` – Zakir May 26 '17 at 23:00
1

@Zakir `using namespace std;` is a bad habit: https://stackoverflow.com/questions/1452721 – aschepler May 26 '17 at 23:20
@aschepler: Thanks - never thought of it that way !! – Zakir May 27 '17 at 16:13

How to initialize a vector of pair when it is typedef-ed?

0 Answers0