c********e
发帖数: 383 | 1 plz compile below code for me if you could, thx.
#include
/*
//normal one works
template
class Base
{
public:
Base (int i) : i_ (i) {}
private:
int i_;
};
template
class Upper : public Base >
{
public:
Upper (int t) : Base > (t) {}
};
int main ()
{
Upper up (1);
}
*/
//template template workes with implicit base mem call
//but can not call explicitly.
template class Derived>
class Base
{
public: |
t****t
发帖数: 6806 | 2 不行
1.C: In constructor 'Upper::Upper(int)':
1.C:46: error: type/value mismatch at argument 1 in template parameter list
for 'template class Derived> class Base'
1.C:46: error: expected a class template, got 'Upper'
【在 c********e 的大作中提到】
: plz compile below code for me if you could, thx.
: #include
: /*
: //normal one works
: template
: class Base
: {
: public:
: Base (int i) : i_ (i) {}
: private:
|
t****t
发帖数: 6806 | 3 原因是这样
14.6.1
1 Within the scope of a class template, when the name of the template is
neither qualified nor followed by <, it is equivalent to the name of
the template followed by the template-parameters enclosed in <>.
[Example: the constructor for Set can be referred to as Set() or
Set(). ] Other specializations (_temp.expl.spec_) of the class can
be referred to by explicitly qualifying the template name with the
appropriate template-arguments. [Example:
te
【在 t****t 的大作中提到】
: 不行
: 1.C: In constructor 'Upper::Upper(int)':
: 1.C:46: error: type/value mismatch at argument 1 in template parameter list
: for 'template class Derived> class Base'
: 1.C:46: error: expected a class template, got 'Upper'
|
c********e
发帖数: 383 | 4 ah...thrust u rule.
but can u post the working code? i dont have access to the newer compiler.
【在 t****t 的大作中提到】
: 原因是这样
: 14.6.1
: 1 Within the scope of a class template, when the name of the template is
: neither qualified nor followed by <, it is equivalent to the name of
: the template followed by the template-parameters enclosed in <>.
: [Example: the constructor for Set can be referred to as Set() or
: Set(). ] Other specializations (_temp.expl.spec_) of the class can
: be referred to by explicitly qualifying the template name with the
: appropriate template-arguments. [Example:
: te
|
c********e
发帖数: 383 | 5 nevermind, got it. 3.4 works the same way.
thx
【在 c********e 的大作中提到】
: ah...thrust u rule.
: but can u post the working code? i dont have access to the newer compiler.
|
r****t
发帖数: 10904 | 6 thrust 你这个原因是查的什么资料？有时候有些错误看不懂，你这个资料好像很有用。
【在 t****t 的大作中提到】
: 原因是这样
: 14.6.1
: 1 Within the scope of a class template, when the name of the template is
: neither qualified nor followed by <, it is equivalent to the name of
: the template followed by the template-parameters enclosed in <>.
: [Example: the constructor for Set can be referred to as Set() or
: Set(). ] Other specializations (_temp.expl.spec_) of the class can
: be referred to by explicitly qualifying the template name with the
: appropriate template-arguments. [Example:
: te
|
