STL multimap g++ compiler error?

STL multimap g++ compiler error?

[susan_in_california]

Hello, everyone! I am seeing something strange with the STL multimap class. I
copy the following lines right from the tutorial:

multimap<char,int> mymultimap;

// first insert function version (single parameter):
mymultimap.insert ( pair<char,int>('a',100) );

and I see the following error when I try to compile:

g++ -Wall -O2 -DNDEBUG -I/usr/include
-I/home/sm19/library/gmp-4.3.1/mygmp/include
-L/home/sm19/library/gmp-4.3.1/mygmp/lib  -c cun_gel.cpp
cun_gel.cpp: In member function âbool cun_gel::construct_leaf_BX(int)â:
cun_gel.cpp:653: error: expected primary-expression before âcharâ
cun_gel.cpp:653: error: expected primary-expression before âintâ

I wonder if anyone can help? Perhaps there is something with my compiler
flags? I am including the <map> header file, but perhaps I ought to be
including something else as well?

Thanks for responses, as always!

Best,
Susan
-- 
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Re: STL multimap g++ compiler error?

[Brian Budge]

Hi -

This might be more appropriate to post to a C++ forum, but you are
probably missing the namespace "using" declaration.  You need to let
the compiler know that both multimap and pair are in namespace std.

  Brian

On Sun, Jul 26, 2009 at 8:45 PM,
susan_in_california<bajichuan@hotmail.com> wrote:
>
> Hello, everyone! I am seeing something strange with the STL multimap class. I
> copy the following lines right from the tutorial:
>
> multimap<char,int> mymultimap;
>
> // first insert function version (single parameter):
> mymultimap.insert ( pair<char,int>('a',100) );
>
> and I see the following error when I try to compile:
>
> g++ -Wall -O2 -DNDEBUG -I/usr/include
> -I/home/sm19/library/gmp-4.3.1/mygmp/include
> -L/home/sm19/library/gmp-4.3.1/mygmp/lib  -c cun_gel.cpp
> cun_gel.cpp: In member function âbool cun_gel::construct_leaf_BX(int)â:
> cun_gel.cpp:653: error: expected primary-expression before âcharâ
> cun_gel.cpp:653: error: expected primary-expression before âintâ
>
> I wonder if anyone can help? Perhaps there is something with my compiler
> flags? I am including the <map> header file, but perhaps I ought to be
> including something else as well?
>
> Thanks for responses, as always!
>
> Best,
> Susan
> --
> View this message in context: http://www.nabble.com/STL-multimap-g%2B%2B-compiler-error--tp24673178p24673178.html
> Sent from the gcc - Help mailing list archive at Nabble.com.
>
>

Re: STL multimap g++ compiler error?

[susan_in_california]

Sorry for the mis-post! Your comment definitely put me on the right track. I
was already "using namespace std;", but adding 

mymultimap.insert ( std::pair<char,int>('a',100) );

did the trick. Thanks for responding, even though the forum wasn't quite
right!

Best,
Susan
-- 
View this message in context: http://www.nabble.com/STL-multimap-g%2B%2B-compiler-error--tp24673178p24673644.html
Sent from the gcc - Help mailing list archive at Nabble.com.