Writing an allocator

[Protoman]

Why won't the compiler let me write this:

template <class T>
class Allocator
{
public:
Allocator(){}
T* allocate(){static long long i=0; T* j=new(pool) T; i++; return
&*j;}
private:
static T pool[1000000];
}

It keeps saying: "expected ; at end of input". Can you help me fix
this? Thanks.

 

[Neelesh Bodas]

Why won't the compiler let me write this:

template <class T>
class Allocator
{
public:
Allocator(){}
T* allocate(){static long long i=0; T* j=new(pool) T; i++; return
&*j;}
private:
static T pool[1000000];
}

It keeps saying: "expected ; at end of input". Can you help me fix
this? Thanks.

The previous two problems. Plus the missing semicolon at the end of the
structure.

 

[Protoman]

Why won't the compiler let me write this:

template <class T>
class Allocator
{
public:
Allocator(){}
T* allocate(){static long long i=0; T* j=new(pool) T; i++; return
&*j;}
private:
static T pool[1000000];
}

But why doesn't this work:

template <class T, long long X>
class Allocator
{
public:
Allocator(){}
T* allocate(){static long long i=0; T* j=new(&pool) T; i++; return
&*j;}
private:
static T pool[X];
};
template<class T,long long X> T Allocator<T>:ool[X];
int main()
{
Allocator<long long,100> alloc;
long long* i=alloc.allocate();
system("PAUSE");
return 0;
}

Any suggestions? Thanks.

 

[Neelesh Bodas]

But why doesn't this work:

template <class T, long long X>
class Allocator
{
public:
Allocator(){}
T* allocate(){static long long i=0; T* j=new(&pool) T; i++; return
&*j;}

private:
static T pool[X];
};
template<class T,long long X> T Allocator<T>:ool[X];

int main()
{
Allocator<long long,100> alloc;
long long* i=alloc.allocate();
system("PAUSE");
return 0;
}

Hope this helps.