This allows llvm::Optional to be used with movable-but-not-copyable types.
While LLVM itself is still C++03, there's no reason why tools built on
top of it can't use C++11 features.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166241
91177308-0d34-0410-b5e6-
96231b3b80d8
#ifndef LLVM_ADT_OPTIONAL
#define LLVM_ADT_OPTIONAL
+#include "LLVM/Support/Compiler.h"
#include <cassert>
+#if LLVM_USE_RVALUE_REFERENCES
+#include <utility>
+#endif
+
namespace llvm {
template<typename T>
explicit Optional() : x(), hasVal(false) {}
Optional(const T &y) : x(y), hasVal(true) {}
+#if LLVM_USE_RVALUE_REFERENCES
+ Optional(T &&y) : x(std::forward<T>(y)), hasVal(true) {}
+#endif
+
static inline Optional create(const T* y) {
return y ? Optional(*y) : Optional();
}