1 //===------------------------- typeinfo.cpp -------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
12 #if defined(_LIBCPP_ABI_MICROSOFT) && defined(_LIBCPP_NO_VCRUNTIME)
15 int std::type_info::__compare(const type_info &__rhs) const _NOEXCEPT {
16 if (&__data == &__rhs.__data)
18 return strcmp(&__data.__decorated_name[1], &__rhs.__data.__decorated_name[1]);
21 const char *std::type_info::name() const _NOEXCEPT {
22 // TODO(compnerd) cache demangled &__data.__decorated_name[1]
23 return &__data.__decorated_name[1];
26 size_t std::type_info::hash_code() const _NOEXCEPT {
28 constexpr size_t fnv_offset_basis = 14695981039346656037ull;
29 constexpr size_t fnv_prime = 10995116282110ull;
31 constexpr size_t fnv_offset_basis = 2166136261ull;
32 constexpr size_t fnv_prime = 16777619ull;
35 size_t value = fnv_offset_basis;
36 for (const char* c = &__data.__decorated_name[1]; *c; ++c) {
37 value ^= static_cast<size_t>(static_cast<unsigned char>(*c));
47 #endif // _LIBCPP_ABI_MICROSOFT
49 // FIXME: Remove __APPLE__ default here once buildit is gone.
50 // FIXME: Remove the _LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY configuration.
51 #if (!defined(LIBCXX_BUILDING_LIBCXXABI) && !defined(LIBCXXRT) && \
52 !defined(__GLIBCXX__) && !defined(__APPLE__) && \
53 !(defined(_LIBCPP_ABI_MICROSOFT) && !defined(_LIBCPP_NO_VCRUNTIME))) || \
54 defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY)
55 std::type_info::~type_info()