conditional compilation

[Gary Wessle]

Hi

I need to create an object of her_t OR his_t inside a namespace. the
choice should be decided based on a macro. did the following
accomplish this?

thank you.

// macro
// uncomment ONLY ONE of the 2 lines below
#define HIS
//#define HER


namespace s_inf
{
....

#ifdef HIS
his_t conn; // FXGame OR FXTrade
#endif

#ifdef HER
her_t conn;
#endif

....
}

the above created his_t and NOT her_t object. right?

// place in a ".h" file and #include it in ".cpp" file and use the
object "conn".

 

[Leo]

Yeah, It will.
When you start compiling, your code is done.

 

[Frederick Gotham]

Gary Wessle posted:

I need to create an object of her_t OR his_t inside a namespace. the
choice should be decided based on a macro.

#ifdef MALE
typedef his_t Type;
#else
#ifdef FEMALE
typedef her_t Type;
#else
#error "You must #define either MALE or FEMALE."
#endif
#endif

namespace MyNa {

Type obj;
}

 

[red floyd]

Gary Wessle posted:



#ifdef MALE
typedef his_t Type;
#else
#ifdef FEMALE
typedef her_t Type;
#else
#error "You must #define either MALE or FEMALE."
#endif
#endif

namespace MyNa {

Type obj;
}

#if defined(MALE)
typedef his_t Type;
#elif defined(FEMALE)
typedef her_t Type;
#else
#error "You must #define either MALE or FEMALE
#endif