c++ - 在模板参数中将 const unsigned int 转换为 unsigned int

Question

使用以下代码:

#include <iostream>

template< class T, unsigned int NVectorDimension = 3 >
class Vector
{
};

template< unsigned int TDimension >
int RunTest( void )
{
  const unsigned int VectorDimension = 4;
  typedef Vector< int, VectorDimension >     VectorPixelType;
}

int main(int argc, char *argv[])
{

  return 0;
}

我得到:

In function ‘int RunTest()’:
12:40: error: could not convert template argument ‘VectorDimension’ to ‘unsigned int’
error: invalid type in declaration before ‘;’ token

知道这有什么问题吗？

大卫

Answer 1

gcc 确实有一个错误。现在已经修复: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48657