static member initialization in templates

[gbs]

Isn't this legal code to initialize a static member of a template
class?

template <class T>
class TemplatedClassT
{
static int staticMember_;
};


class A
{
//....
};

//...
//...initialize
//...
int TemplatedClassT<A>::staticMember_ = 0;

GCC 3.4.1 is rejecting it. But, how else could
TemplatedClassT<A>::staticMember_ be initialized?

Greg Silverman
Northrop Grumman
San Jose, CA

 

[Jacek Dziedzic]

Isn't this legal code to initialize a static member of a template
class?

template <class T>
class TemplatedClassT
{
static int staticMember_;
};


class A
{
//....
};

//...
//...initialize
//...
int TemplatedClassT<A>::staticMember_ = 0;

GCC 3.4.1 is rejecting it. But, how else could
TemplatedClassT<A>::staticMember_ be initialized?

Are you 100% sure that the initialization happens only once,
ie. that the file containing
int TemplatedClassT<A>::staticMember_ = 0;
is included only once?

HTH,
- J.

 

[Rob Williscroft]

Jacek Dziedzic wrote in in
comp.lang.c++:

The following is an explicit specialization (of a member),
It should be preceded with:

Are you 100% sure that the initialization happens only once,
ie. that the file containing
int TemplatedClassT<A>::staticMember_ = 0;
is included only once?

test.cpp:20: error: too few template-parameter-lists
test.cpp:20: error: expected `,' or `;' before '=' token

Rob.

 

[=?ISO-8859-1?Q?Falk_Tannh=E4user?=]

X-ReplaceAddress:yes

Isn't this legal code to initialize a static member of a template
class?

template <class T>
class TemplatedClassT
{
static int staticMember_;
};

template<typename T>
int TemplatedClassT<T>::staticMember_ = 0;

Falk Tannhäuser

 

[Greg Comeau]

Isn't this legal code to initialize a static member of a template
class?

template <class T>
class TemplatedClassT
{
static int staticMember_;
};


class A
{
//....
};

//...
//...initialize
//...
int TemplatedClassT<A>::staticMember_ = 0;

GCC 3.4.1 is rejecting it. But, how else could
TemplatedClassT<A>::staticMember_ be initialized?

By prefixing it with 'template <>'

 

[Ben Hutchings]

Isn't this legal code to initialize a static member of a template
class?
No.

template <class T>
class TemplatedClassT
{
static int staticMember_;
};


class A
{
//....
};

//...
//...initialize
//...
int TemplatedClassT<A>::staticMember_ = 0;

GCC 3.4.1 is rejecting it. But, how else could
TemplatedClassT<A>::staticMember_ be initialized?