How do I make an array (or an abstract data type) which can hold different data types? Then use those data types to create instances.
I want to do the following:
int arrayType[3] = {bool, int, char};
/*arrayType[0]*/ myBool = true;
/*arrayType[1]*/ myInt = 2;
/*arrayType[2]*/ myChar = "a";Jump to Postcreate a union
// declare types enum data_types { undefined_type = 0, bool_type, char_type, short_type, ushort_type, int_type, uint_type, // etc for each type you want to support }; struct data { data_types valid_type; union types { bool b; char c; short s; unsigned short us; int i; …
Jump to Postummm, not sure why but how about this idea:
…struct EmptyType{} template<typename T1,typename T2 = EmptyType(),...and so on for some finite amount> struct TupleType{ typedef type1 T1; typedef type2 T2; //...and so on } int main(){ Tuple<int,bool,char,string> Tuple::type1 intType = 0; Tuple::type2 boolType = false; //... }
create a union
// declare types
enum data_types {
undefined_type = 0,
bool_type,
char_type,
short_type,
ushort_type,
int_type,
uint_type,
// etc for each type you want to support
};
struct data
{
data_types valid_type;
union types
{
bool b;
char c;
short s;
unsigned short us;
int i;
unsigned int ui;
long l;
unsigned long ul;
long long ll;
float f;
double d;
};
};
ummm, not sure why but how about this idea:
struct EmptyType{}
template<typename T1,typename T2 = EmptyType(),...and so on for some finite amount>
struct TupleType{
typedef type1 T1;
typedef type2 T2;
//...and so on
}
int main(){
Tuple<int,bool,char,string>
Tuple::type1 intType = 0;
Tuple::type2 boolType = false;
//...
}What exactly are you trying to do?
this is a year old :)
Oh damn, wondering how come this thread popped up in the list 1 of the page?
someone bumped it but his posts was deleted
btw, i like the Typelist idea, its a great idea to do lot of things. :)
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