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https://github.com/pybind/pybind11.git
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6e036e78a7
When compiling in C++17 mode the noexcept specifier is part of the function type. This causes a failure in pybind11 because, by omitting a noexcept specifier when deducing function return and argument types, we are implicitly making `noexcept(false)` part of the type. This means that functions with `noexcept` fail to match the function templates in cpp_function (and other places), and we get compilation failure (we end up trying to fit it into the lambda function version, which fails since a function pointer has no `operator()`). We can, however, deduce the true/false `B` in noexcept(B), so we don't need to add a whole other set of overloads, but need to deduce the extra argument when under C++17. That will *not* work under pre-C++17, however. This commit adds two macros to fix the problem: under C++17 (with the appropriate feature macro set) they provide an extra `bool NoExceptions` template argument and provide the `noexcept(NoExceptions)` deduced specifier. Under pre-C++17 they expand to nothing. This is needed to compile pybind11 with gcc7 under -std=c++17.
44 lines
1.1 KiB
Python
44 lines
1.1 KiB
Python
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def test_constants():
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from pybind11_tests import some_constant
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assert some_constant == 14
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def test_function_overloading():
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from pybind11_tests import MyEnum, test_function
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assert test_function() == "test_function()"
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assert test_function(7) == "test_function(7)"
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assert test_function(MyEnum.EFirstEntry) == "test_function(enum=1)"
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assert test_function(MyEnum.ESecondEntry) == "test_function(enum=2)"
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assert test_function(1, 1.0) == "test_function(int, float)"
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assert test_function(2.0, 2) == "test_function(float, int)"
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def test_bytes():
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from pybind11_tests import return_bytes, print_bytes
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assert print_bytes(return_bytes()) == "bytes[1 0 2 0]"
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def test_exception_specifiers():
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from pybind11_tests.exc_sp import C, f1, f2, f3, f4
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c = C()
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assert c.m1(2) == 1
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assert c.m2(3) == 1
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assert c.m3(5) == 2
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assert c.m4(7) == 3
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assert c.m5(10) == 5
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assert c.m6(14) == 8
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assert c.m7(20) == 13
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assert c.m8(29) == 21
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assert f1(33) == 34
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assert f2(53) == 55
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assert f3(86) == 89
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assert f4(140) == 144
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