Compiling w/ library header files

[txjump]

Hello all,

I'm trying to create a tool library so i can use several functions in different dll files that im creating. my problem is that i can compile the library fine. but when i do a #include and set the vc++ "additional include directories" w/ the correct path to the header file...i get two compile errors that are for the tool library header file (the one that compiles fine on its own).

c:\Documents and Settings\swaage\My Documents\Visual Studio Projects\systemTools\systemTool.h(31) : error C2143: syntax error : missing ';' before '<'
c:\Documents and Settings\swaage\My Documents\Visual Studio Projects\systemTools\systemTool.h(31) : error C2238: unexpected token(s) preceding ';'

could someone explain to me why this happens? and maybe what i need to do to fix it?

thanks,
txjump

 

[programsecrets]

If your header file(s) mentions any &quot;user-defined&quot; classes which are not defined or #include'd in that header file, then you need to &quot;forward reference&quot; them (without the definition or body) prior to the reference, something like this:

// this is what's needed in the header:
class COtherClass;

// the class where COtherClass is referenced:
class CThisClass
{
public:
  COtherClass  MyOtherClass;
...
};

 

[txjump]

thanks, but I dont reference any other &quot;user-defined&quot; classes at this point. i will keep that in mind if i do, but for now its just a pretty simple class.

#pragma once
struct {
UINT type; // return code from GetDriveType
LPCSTR name; // ascii name
} DriveTypeFlags [] = {
{ DRIVE_UNKNOWN, &quot;Unknown&quot; },
{ DRIVE_NO_ROOT_DIR, &quot;Invalid path&quot; },
{ DRIVE_REMOVABLE, &quot;Removable&quot; },
{ DRIVE_FIXED, &quot;Fixed&quot; },
{ DRIVE_REMOTE, &quot;Network drive&quot; },
{ DRIVE_CDROM, &quot;CD-ROM&quot; },
{ DRIVE_RAMDISK, &quot;RAM disk&quot; },
{ 0, NULL},
};

class systemTool
{


public:

static CString pathForFoundFile;
static bool found;

systemTool(void);
~systemTool(void);

// returns a double array of strings. each row contains the drive name and type of drive
static map<char*, char*> getMappedDrives(void);
static bool checkEnvVar();
static void findFile(LPCTSTR pstr, CString fileName, CString pathContains);

};


thats the whole .h file. any other suggestions? :S

txjump

 

[programsecrets]

I believe it doesn't recognize &quot;map&quot; in the following line:

static map<char*, char*> getMappedDrives(void);

Try adding the following #include near the top of your header file:

#include <map>

From MSDN:

Include the STL standard header <map> to define the container template classes map and multimap, and their supporting templates.

 

[txjump]

thanks for your replies

it is included in the stdafx.h file but i went ahead and included it in the systemTool.h (the header file i posted above).

also tried to put it in my dll that is using the systemTool.h file. neither worked. still got the same errors when compiling the dll. systemTool project still compiled fine on its own.

i moved all the includes over to systemTool.h and it compiled on its own. but now when i try from the dll i get two different error messages. it compiles but it doesnt link right because

systemTools.lib(systemTool.obj) : error LNK2001: unresolved external symbol &quot;public: static class ATL::CStringT<char,class StrTraitMFC<char,class ATL::ChTraitsCRT<char> > > systemTool:athForFoundFile2&quot; (?pathForFoundFile2@systemTool@@2V?$CStringT@DV?$StrTraitMFC@DV?$ChTraitsCRT@D@ATL@@@@@ATL@@A)

systemTools.lib(systemTool.obj) : error LNK2001: unresolved external symbol &quot;public: static bool systemTool::found2&quot; (?found2@systemTool@@2_NA)

.\Debug/PRLBridgeDll.dll : fatal error LNK1120: 2 unresolved externals

grrrrrrrrrrrrrr! im so confused. why would the dll compile have a resolution problem with two variables in the library? as you can see, i tried renaming things just incase there was a problem there...but same errors. one of them is a simple data type of bool. the other is a CString.

i really wanna do this with a library but i just may copy my code into my next dll (duplicate code, ick).

thanks
txjump