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Mike · Guest

Hi,

i am working on an application which use three mysql database. i program
with bcb 5 enterprise. As I will very often connect to these databases I
like to write my own function, which can be used from anywhere and for any
database.

I have following vision:

I have anywhere one of few TmySQLDatabase objects. Now, I call a function,
which I give the adress of that TmySQLDatabase object and second parameter
determine the database. Exmaple:

DBConnect(&SQLDatabase,"db1");

The function has the task to build a connection to that object and give it
back, so that my application may work with it.

I have created to files:

database.cpp

#include "database.h"
// connect with database
bool __fastcall DBConnect(TmySQLDatabase *database, String db)
{
return true;
}

and

database.h

#include <vcl.h>
// connect with databse
bool __fastcall DBConnect(TmySQLDatabase *database, String db);

Now I add the CPP fiel to my project and include the header file.

After compiling, i get these errors:

[C++ Fehler] DATABASE.H(7): E2147 Parameterdeklaration darf nicht mit
'TmySQLDatabase' beginnen.
[C++ Fehler] database.cpp( Cool

: E2147 Parameterdeklaration darf nicht mit
'TmySQLDatabase' beginnen.

Translate to english, it should be like:

[C++ Error] DATABASE.H(7): E2147 parameter declaration may not start with
'TmySQLDatabase'.
[C++ Error] database.cpp( Cool

: E2147 parameter declaration may not start with
'TmySQLDatabase'.

Now I tried to add this line in the Header file:

#include "mySQLDbTables.hpp"

This error appears:

[C++ Warnung] Math.hpp(76): W8058 Präcompilierter Header: Initialisierte
Daten im Header kann nicht erzeugt werden.

in english:

[C++ Error] Math.hpp(76): W8058 prae compiled header: Initialize data in
header cannot be generated.

My CPP file and H file stay in parallel folders to my project, if this is
important for you.

I hope you could unterstand and help me.

Mike