mirror of https://github.com/swig/swig
96 lines
2.8 KiB
OpenEdge ABL
96 lines
2.8 KiB
OpenEdge ABL
/* This interface tests whether SWIG supports the new "constexpr" keyword
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introduced by C++11.
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*/
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%module cpp11_constexpr
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%{
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#if defined(__clang__)
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#pragma clang diagnostic push
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// Suppress: 'constexpr' non-static member function will not be implicitly 'const' in C++14; add 'const' to avoid a change in behavior
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// For MMM() and NNN()
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#pragma clang diagnostic ignored "-Wconstexpr-not-const"
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#endif
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#include <limits>
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%}
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%ignore operator==(ConstExpressions,ConstExpressions);
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%ignore operator!=(ConstExpressions,ConstExpressions);
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%inline %{
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#ifdef SWIG
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#define SWIGTESTCONST const
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#else
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#define SWIGTESTCONST
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#endif
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constexpr int AAA = 10;
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constexpr const int BBB = 20;
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constexpr int CCC() { return 30; }
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constexpr SWIGTESTCONST int DDD() { return 40; }
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constexpr int XXX() { return 10; }
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constexpr int YYY = XXX() + 100;
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struct ConstExpressions {
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static constexpr const int JJJ = 100;
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static constexpr int KKK = 200;
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static const int LLL = 300;
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constexpr int MMM() { return 400; }
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constexpr SWIGTESTCONST int NNN() { return 500; }
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// Regression tests for support added in SWIG 3.0.4:
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static constexpr const int JJJ1 = 101;
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constexpr static int KKK1 = 201;
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// Regression tests for https://github.com/swig/swig/issues/284 :
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explicit constexpr ConstExpressions(int) { }
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constexpr explicit ConstExpressions(const char*) { }
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// Regression tests for https://github.com/swig/swig/issues/2079 :
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constexpr friend bool operator==(ConstExpressions,ConstExpressions) { return true; }
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friend constexpr bool operator!=(ConstExpressions,ConstExpressions) { return false; }
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};
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int Array10[AAA];
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int Array20[BBB];
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int Array30[CCC()];
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int Array40[DDD()];
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int Array100[ConstExpressions::JJJ];
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int Array200[ConstExpressions::KKK];
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int Array300[ConstExpressions::LLL];
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//int Array400[ConstExpressions::MMM()];
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//int Array500[ConstExpressions::NNN()];
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// Regression test for https://github.com/swig/swig/issues/2486 fixed in 4.2.0
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// (the array size is constexpr in C++11):
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unsigned char myarray[std::numeric_limits<unsigned char>::max()];
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// Also check that `<(` and `)>` in the expression are handled, since these have
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// special meanings for SWIG's type system. SWIG should rewrite them as `< (`
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// and `) >` here to avoid problems.
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template<int N> constexpr int inc() { return N + 1; };
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unsigned char myarray2[inc<(1)>()];
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// Test handling of ID PERIOD ID in constant expressions (supported since 4.1.0).
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struct A {
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int i;
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};
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constexpr A a{42};
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constexpr int N = a.i;
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// Regression test for https://github.com/swig/swig/issues/3127 fixed in 4.4.0:
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#include <array>
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constexpr std::size_t my_enum_size =
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sizeof(
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decltype(
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42
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)
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) ? 1 + static_cast<std::size_t>(
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4
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) : alignof(
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std::size_t
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);
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std::array<bool, my_enum_size> do_something() {
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return std::array<bool, my_enum_size>{true,true,true,true,true};
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}
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%}
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