Files
cbindgen/tests/expectations/prefix.cpp
T
Emilio Cobos Álvarez b2e224354b Use placement new for constructing in tagged unions' helper methods.
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 :)
2019-05-10 18:15:39 +02:00

35 lines
541 B
C++

#include <cstdarg>
#include <cstdint>
#include <cstdlib>
#include <new>
static const int32_t PREFIX_LEN = 42;
using PREFIX_NamedLenArray = int32_t[PREFIX_LEN];
using PREFIX_ValuedLenArray = int32_t[42];
union PREFIX_AbsoluteFontWeight {
enum class Tag : uint8_t {
Weight,
Normal,
Bold,
};
struct Weight_Body {
Tag tag;
float _0;
};
struct {
Tag tag;
};
Weight_Body weight;
};
extern "C" {
void root(PREFIX_NamedLenArray x, PREFIX_ValuedLenArray y, PREFIX_AbsoluteFontWeight z);
} // extern "C"