[Solved] EE 2.0 Doesn't want to parse a header

Houge · 02-26-2014 05:20 PM

Hello!

I faced the problem: I installed PostgreSQL 9.3 and i'm trying to use it's header in EE 2.0. I include full header path - "C:\PostgreSQL\9.3\include\libpq-fe.h" but there are no classes in autocomplete system. Nevertheless it builds and works.

Houge · 02-28-2014 06:05 PM

UP, it prevents me from creation a functions with return variable types from this header, like

Code:

PGconn* DatabaseConnection(PGconn *conn, Str user, Str pwd)

{

    conn = PQconnectdb(Str8("user=user password=1 dbname=db hostaddr=127.0.0.1 port=5432"));

    if (PQstatus(conn) != CONNECTION_OK)

    {

       Gui.msgBox("Error connecting to DB!", S+PQstatus(conn));

       return NULL;

    }

    return conn; 

}

Interesting thing: if i create such code it is replaced by EE with the following when building:

Code:

/******************************************************************************/

// VARIABLES

/******************************************************************************/

extern PGconn* DatabaseConnection(PGconn *conn, Str user, Str pwd)

{

    conn = PQconnectdb(Str8(L"user=user password=1 dbname=db hostaddr=127.0.0.1 port=5432"));

/******************************************************************************/

// FUNCTIONS

/******************************************************************************/

so VS stops compilation. But if i use it like that:

Code:

PGconn* DatabaseConnection(PGconn *conn)

{

    conn = PQconnectdb(Str8("user=user password=1 dbname=db hostaddr=127.0.0.1 port=5432"));

    if (PQstatus(conn) != CONNECTION_OK)

    {

       Gui.msgBox("Error connecting to DB!", S+PQstatus(conn));

       return NULL;

    }

    return conn; 

}

Everything is ok.

Houge · 03-02-2014 02:00 PM

UP! Greg! I found the reason:
At header start there is a line

Code:

extern      "C"

{

... all the code ...

}

If i remove it, then header is parsed, but of course it doesn't compile smile

Can you do sonething with it?

**Esenthel** · 03-02-2014 08:55 PM

Thanks, I'll investigate it.
Could you also let me know why are you using PostgreSQL ? Are there any advantages in using it instead of builtin MS SQL, MySQL, SQLite?
Thanks

**Esenthel** · 03-02-2014 11:51 PM

Next release will have this feature:
-added support for parsing headers with 'extern "C"'

Houge · 03-03-2014 04:54 AM

(03-02-2014 11:51 PM)Esenthel Wrote: Next release will have this feature:
-added support for parsing headers with 'extern "C"'

Thanks a lot!!!

(03-02-2014 08:55 PM)Esenthel Wrote: Thanks, I'll investigate it.
Could you also let me know why are you using PostgreSQL ? Are there any advantages in using it instead of builtin MS SQL, MySQL, SQLite?
Thanks

PostgreSQL vs MS SQL:
It's free and can be installed to Linux server

PostgreSQL vs MySQL:
You can use stored procedures, cursors, functional indexes, regular expressions and more. MySQL is more famous and PostgreSQL is much more powerful.

PostgreSQL vs SQLite:
They are in different weight categories smile

PostgreSQL is like a free version of Oracle without analytic functionality. Frankly speaking I wanted to use Oracle, but it is too expensive (40k$ per processor core is too much) so PostgreSQL is the best alternative.

Houge · 03-12-2014 06:10 AM

Thanks, Greg!
After today's release everything works great!

**Esenthel** · 03-12-2014 06:12 AM

Thanks for letting me know!

[Solved] EE 2.0 Doesn't want to parse a header
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