Re: %union with STL

[Vincent Zweije]

On Sun, May 24, 2009 at 06:36:28PM +0200, Hans Aberg wrote:

||  On 22 May 2009, at 20:11, Paritosh Aggarwal wrote:

||  > %{
||  > #include<map>
||  > #include "heading.h"
||  >
||  > using namespace std;
||  >
||  > int yyerror(char *s);
||  > int yylex(void);
||  > %}
||  >
||  > %union
||  > {
||  >    pair<const string,int>* it;
||  >    int val;
||  > }

||  > compiling this gives the following error: jitparser.y:15: error: ISO
||  > C++
||  > forbids declaration of ‘pair’ with no type
||  > jitparser.y:15: error: expected ‘;’ before ‘<’ token

This message is typical from g++ if you forgot to declare a template type.

||  In the above, make sure the header for std::pair is included -
||  impossible to see from your example.

std::pair is declared in <utility>, so be sure to include that header.

Ciao.                                                             Vincent.
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