b40bf83eab
For loops using pseudo-arrays, classes that can be used like arrays from the Loop Convert Transform's point of view, should only get transformed if the pseudo-array class has begin()/end() members for the range-based for-loop to call. Free versions of begin()/end() should also be allowed but this is an enhancement for another revision. llvm-svn: 181539
33 lines
798 B
C++
33 lines
798 B
C++
// RUN: grep -Ev "// *[A-Z-]+:" %s > %t.cpp
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// RUN: cpp11-migrate -loop-convert %t.cpp -- -I %S/Inputs -std=c++11
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// RUN: FileCheck -input-file=%t.cpp %s
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// XFAIL: *
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struct MyArray {
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unsigned size();
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};
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template <typename T>
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struct MyContainer {
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};
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int *begin(const MyArray &Arr);
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int *end(const MyArray &Arr);
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template <typename T>
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T *begin(const MyContainer<T> &C);
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template <typename T>
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T *end(const MyContainer<T> &C);
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// The Loop Convert Transform doesn't detect free functions begin()/end() and
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// so fails to transform these cases which it should.
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void f() {
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MyArray Arr;
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for (unsigned i = 0, e = Arr.size(); i < e; ++i) {}
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// CHECK: for (auto & elem : Arr) {}
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MyContainer<int> C;
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for (int *I = begin(C), *E = end(C); I != E; ++I) {}
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// CHECK: for (auto & elem : C) {}
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}
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