mirror of https://github.com/swig/swig
72 lines
2.1 KiB
OpenEdge ABL
72 lines
2.1 KiB
OpenEdge ABL
%module constant_expr;
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/* Tests of constant expressions (C++ version). */
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%include "constant_expr_c.i"
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%inline %{
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// Testcase from https://sourceforge.net/p/swig/bugs/1139/
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template<typename Tp>
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struct SizeInfo {
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enum {
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isLarge = (sizeof(Tp)>sizeof(void*)),
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isPointer = false
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};
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};
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/* Regression test for #300, fixed in 4.1.0.
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*
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* Now `9%a` without a space after the `%` is handled as a modulus operator,
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* but it gave a cryptic `Syntax error in input(1)` before SWIG 3.0.4, and from
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* SWIG 3.0.4 until 4.1.0, `Unknown directive '%a'`.
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*/
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int a;
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int test2(int b = 9%a) { return b; }
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/* Example from manual, adapted to avoid C++11 requirement. */
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namespace fakestd {
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template<typename T, unsigned N>
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class array {
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T a[N];
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public:
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array() {}
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};
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}
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void bar(fakestd::array<int, (1<2? 100 : 50)> *x) { }
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%}
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// Regression test for #2919, fixed in 4.3.0.
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//
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// sizeof() didn't work on complex expressions or types.
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//
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// This is just a parsing test for SWIG as it uses C++11 features.
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#include <type_traits>
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template <typename T>
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class InternalHelper {
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public:
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// Original source: https://github.com/protocolbuffers/protobuf/blob/v20.2/src/google/protobuf/arena.h#L449-L458
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template <typename U>
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static char DestructorSkippable(const typename U::DestructorSkippable_*);
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template <typename U>
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static double DestructorSkippable(...);
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typedef std::integral_constant<
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bool, sizeof(DestructorSkippable<T>(static_cast<const T*>(0))) ==
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sizeof(char) ||
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std::is_trivially_destructible<T>::value>
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is_destructor_skippable;
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// This is nonsensical, but provides a regression test for this not working with alignof() either.
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typedef std::integral_constant<
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bool, alignof(DestructorSkippable<T>(static_cast<const T*>(0))) ==
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alignof(char) ||
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std::is_trivially_destructible<T>::value>
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test_alignof_too;
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};
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%constant int WSTRING_LIT_LEN1 = (sizeof(L"1234")/sizeof(wchar_t) - 1);
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%constant int WSTRING_LIT_LEN2 = (sizeof(L"12" L"34")/sizeof(wchar_t) - 1);
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%constant int WSTRING_LIT_LEN3 = (sizeof(L"12\
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" "34")/sizeof(wchar_t) - 1);
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