Emilio Cobos Álvarez
b2e224354b
Using operator= is not quite sound in presence of destructors and operator overloading. It's perfectly fine to assume that the left-hand-side of an operator= expression is valid memory, however we're using uninitialized memory here, that may not be the case. Use placement new to properly construct tagged unions. I don't need this with any urgency, but it's the right thing to do in presence of complex types, and the current code seems a bomb waiting to explode :)
35 lines
564 B
C++
35 lines
564 B
C++
#include <cstdarg>
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#include <cstdint>
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#include <cstdlib>
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#include <new>
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template<typename T>
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struct Bar;
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template<typename T>
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struct Foo {
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const T *data;
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};
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template<typename T, typename E>
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struct Tuple {
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const T *a;
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const E *b;
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};
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template<typename T>
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using Indirection = Tuple<T, float>;
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extern "C" {
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void root(Foo<int32_t> a,
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Foo<float> b,
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Bar<float> c,
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Foo<Bar<float>> d,
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Bar<Foo<float>> e,
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Bar<Bar<float>> f,
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Tuple<Foo<float>, float> g,
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Indirection<float> h);
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} // extern "C"
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