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fix(lifetime): extending the lifetime of temporary objects #160

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15c4476
fix(lifetime): extending the lifetime of temporary objects
amitsingh19975 Feb 9, 2022
8f5a5d1
fix(comparision): use `same_exp` instead of `std::is_same`
amitsingh19975 Feb 10, 2022
8178c6c
refactor(comparision): decoupled `if constexpr` and cleaned-up compare.
amitsingh19975 Feb 10, 2022
9b8c4e1
test(enable): enable tests for expression templates
amitsingh19975 Feb 12, 2022
d70a701
fix(test): bind the prvalue (=3) to a variable
amitsingh19975 Feb 12, 2022
8ec747c
refactor(expression): add function cast_tensor_expression for casting
amitsingh19975 Feb 13, 2022
7a936dd
chore(expression): add `nodiscard`
amitsingh19975 Feb 13, 2022
b6a3dd8
refactor(comparision): remove the construction of a whole new tensor
amitsingh19975 Feb 13, 2022
3a013d0
fix(compare): get the value type after `cast_tensor_expression`
amitsingh19975 Feb 13, 2022
7b23092
refactor(expression): validate predicate and add noexcept
amitsingh19975 Feb 14, 2022
a90573c
refactor(eval): clean the implementation
amitsingh19975 Feb 14, 2022
2abe215
fix(expression): disable the move constructor for public use to avoid…
amitsingh19975 Feb 15, 2022
51674d5
refactor(expression): clean unnecessary code and fix the comparision …
amitsingh19975 Feb 15, 2022
b7de038
refactor(expression): use `std::invoke` and add types to functional o…
amitsingh19975 Feb 15, 2022
bc0afbd
refactor(expression): add `noexcept`, rearrange constructors, and rem…
amitsingh19975 Feb 16, 2022
00357a0
fix(test): remove the undefined behaviour if the type is not FP
amitsingh19975 Feb 16, 2022
549f8a0
refactor(expression): improve error message and simplified if-else.
amitsingh19975 Feb 16, 2022
23ba8fc
refactor(compare): combine two compare function into one for easier m…
amitsingh19975 Feb 16, 2022
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47 changes: 47 additions & 0 deletions examples/tensor/simple_expressions.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,53 @@ int main()
std::cout << "% --------------------------- " << std::endl << std::endl;
std::cout << "F=" << F << ";" << std::endl << std::endl;

// Calling overloaded operators
// and mixing expression templates with prvalues, rvalues, and lvalues
{
// NOLINT(cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers)
auto G = tensor(shape{3,3}, 3.f);
auto E_9 = G + G + G;

// formatted output
std::cout << "% --------------------------- " << std::endl;
std::cout << "% --------------------------- " << std::endl << std::endl;
std::cout << "E(9)=" << tensor(E_9) << ";" << std::endl << std::endl;

// NOLINT(cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers)
auto E_6 = G + 3.f;

// formatted output
std::cout << "% --------------------------- " << std::endl;
std::cout << "% --------------------------- " << std::endl << std::endl;
std::cout << "E(6)=" << tensor(E_6) << ";" << std::endl << std::endl;

// NOLINT(cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers)
auto const four = 4.f;
auto E_10 = E_6 + four;

// formatted output
std::cout << "% --------------------------- " << std::endl;
std::cout << "% --------------------------- " << std::endl << std::endl;
std::cout << "E(10)=" << tensor(E_10) << ";" << std::endl << std::endl;

// NOLINT(cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers)
auto E_23 = E_10 + E_10 + tensor(shape{3,3}, 3.f);

// formatted output
std::cout << "% --------------------------- " << std::endl;
std::cout << "% --------------------------- " << std::endl << std::endl;
std::cout << "E(23)=" << tensor(E_23) << ";" << std::endl << std::endl;

// NOLINT(cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers)
auto E_9_7 = tensor(shape{3,3}, 5.4f) + 4.3f;

// formatted output
std::cout << "% --------------------------- " << std::endl;
std::cout << "% --------------------------- " << std::endl << std::endl;
std::cout << "E(9.7)=" << tensor(E_9_7) << ";" << std::endl << std::endl;

}

} catch (const std::exception& e) {
std::cerr << "Cought exception " << e.what();
std::cerr << "in the main function of simple expression." << std::endl;
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