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This makes sure that `std::function` is imported consistently on supported platforms, and that it allows basic usage: calling a function with `callAsFunction`, initializing an empty function, and passing a function retrieved from C++ back to C++ as a parameter. rdar://103979602
17 lines
444 B
C++
17 lines
444 B
C++
#ifndef TEST_INTEROP_CXX_STDLIB_INPUTS_STD_FUNCTION_H
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#define TEST_INTEROP_CXX_STDLIB_INPUTS_STD_FUNCTION_H
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#include <functional>
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using FunctionIntToInt = std::function<int(int)>;
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FunctionIntToInt getIdentityFunction() {
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return [](int x) { return x; };
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}
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bool isEmptyFunction(FunctionIntToInt f) { return !(bool)f; }
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int invokeFunction(FunctionIntToInt f, int x) { return f(x); }
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#endif // TEST_INTEROP_CXX_STDLIB_INPUTS_STD_FUNCTION_H
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