mirror of
https://github.com/triqs/dft_tools
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22 lines
643 B
C++
22 lines
643 B
C++
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#include <triqs/arrays.hpp>
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#include <triqs/arrays/make_immutable_array.hpp>
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using triqs::arrays::array;
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using triqs::arrays::range;
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using triqs::clef::placeholder;
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int main() {
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placeholder<0> i_;
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placeholder<1> j_;
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auto a = make_immutable_array(1.0 / (2 + i_ + j_), i_ = range(0, 2), j_ = range(0, 2));
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std::cout << "a = " << a << std::endl;
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std::cout << "a = " << array<double, 2>(a) << std::endl;
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// or if you prefer using a lambda...
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auto b = make_immutable_array([](int i, int j) { return i - j; }, range(0, 2), range(0, 2));
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std::cout << "b = " << b << std::endl;
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std::cout << "b = " << array<double, 2>(b) << std::endl;
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}
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