0
我陷入了部分模板实现中,想法是提供一个在编译时使用枚举选择的类(生成器)类的定义,我也想提供文件的名称和一个班级名称从工厂单身管理。但这不是编译,我正在尝试几个小时,但我看不出我做错了什么。 这是代码:C++ 11 -Template MetaProgramming - 错误:部分专业化中未使用的模板参数
enum class BuildersType
{
ComunicationBuilder
};
//class definition
template<BuildersType, class ... Args>
class BuiderType;
//class implementation
template<const char * const FILENAME , const char * const CLASSNAME, class ClassToConfigurate>
class BuiderType<BuildersType::ComunicationBuilder,const char * const ,const char * const ,ClassToConfigurate>
{
public:
};
template<const char * const FILENAME , const char * const CLASSNAME>
class AnotherBuilder
{
};
namespace Test
{
static constexpr char FILENAME []="aFileName";
static constexpr char CLASSNAME []="ClassName";
class TestClass{};
}
int main()
{
BuiderType<BuildersType::ComunicationBuilder,Test::FILENAME,Test::CLASSNAME,Test::TestClass> aBuilder;
AnotherBuilder<Test::FILENAME,Test::CLASSNAME> aAnotherBuilder;
return 0;
}
的编译输出中:
Error: template parameters not used in partial specialization:
class BuiderType<BuildersType::ComunicationBuilder,const char * const ,const char * const ,ClassToConfigurate>
^
main.cpp:14:7: error: 'FILENAME'
main.cpp:14:7: error: 'CLASSNAME'
在这个时间我真的累了,我要求帮助。 Thx // =========================================== ========== 为了简单起见,我将发布的代码与解决方案:
enum class BuildersType
{
ComunicationBuilder
};
//class definition
//Add here definition here of the templates non type arguments
template<BuildersType, const char * const FILENAME , const char * const CLASSNAME,class ... Args>
class BuiderType;
//class implementation
template<const char * const FILENAME , const char * const CLASSNAME, class ClassToConfigurate, class ... Args>
class BuiderType<BuildersType::ComunicationBuilder,FILENAME , CLASSNAME ,ClassToConfigurate,Args...>
{
public:
};
template<const char * const FILENAME , const char * const CLASSNAME>
class AnotherBuilder
{
};
namespace Test
{
static constexpr char FILENAME []="aFileName";
static constexpr char CLASSNAME []="ClassName";
class TestClass{};
}
int main()
{
BuiderType<BuildersType::ComunicationBuilder,Test::FILENAME,Test::CLASSNAME,Test::TestClass> aBuilder;
AnotherBuilder<Test::FILENAME,Test::CLASSNAME> aAnotherBuilder;
return 0;
}
THX,我dindt注意这个! thx –
@roalz:哈哈......每一个,谢谢:D – Pixelchemist
@Pixelchemist呃呃,对不起,这是我的痴迷:-P – roalz