File size: 1,178 Bytes
714e7c4 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 | /* -*- mode: c++; c-basic-offset: 4 -*- */
/* Utilities to create scalars and empty arrays that behave like the
Numpy array wrappers in numpy_cpp.h */
#ifndef MPL_SCALAR_H
#define MPL_SCALAR_H
namespace array
{
template <typename T, int ND>
class scalar
{
public:
T m_value;
scalar(const T value) : m_value(value)
{
}
T &operator()(int i, int j = 0, int k = 0)
{
return m_value;
}
const T &operator()(int i, int j = 0, int k = 0) const
{
return m_value;
}
int dim(size_t i)
{
return 1;
}
size_t size()
{
return 1;
}
};
template <typename T>
class empty
{
public:
typedef empty<T> sub_t;
empty()
{
}
T &operator()(int i, int j = 0, int k = 0)
{
throw std::runtime_error("Accessed empty array");
}
const T &operator()(int i, int j = 0, int k = 0) const
{
throw std::runtime_error("Accessed empty array");
}
sub_t operator[](int i) const
{
return empty<T>();
}
int dim(size_t i) const
{
return 0;
}
size_t size() const
{
return 0;
}
};
}
#endif
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