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| 1 | //===-- include/flang/Runtime/cpp-type.h ------------------------*- C++ -*-===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | // Maps Fortran intrinsic types to C++ types used in the runtime. |
| 10 | |
| 11 | #ifndef FORTRAN_RUNTIME_CPP_TYPE_H_ |
| 12 | #define FORTRAN_RUNTIME_CPP_TYPE_H_ |
| 13 | |
| 14 | #include "flang/Common/Fortran.h" |
| 15 | #include "flang/Common/float128.h" |
| 16 | #include "flang/Common/uint128.h" |
| 17 | #include <cfloat> |
| 18 | #include <complex> |
| 19 | #include <cstdint> |
| 20 | #include <type_traits> |
| 21 | |
| 22 | namespace Fortran::runtime { |
| 23 | |
| 24 | using common::TypeCategory; |
| 25 | |
| 26 | template <TypeCategory CAT, int KIND> struct CppTypeForHelper { |
| 27 | using type = void; |
| 28 | }; |
| 29 | template <TypeCategory CAT, int KIND> |
| 30 | using CppTypeFor = typename CppTypeForHelper<CAT, KIND>::type; |
| 31 | |
| 32 | template <TypeCategory CAT, int KIND> |
| 33 | constexpr bool HasCppTypeFor{ |
| 34 | !std::is_void_v<typename CppTypeForHelper<CAT, KIND>::type>}; |
| 35 | |
| 36 | template <int KIND> struct CppTypeForHelper<TypeCategory::Integer, KIND> { |
| 37 | using type = common::HostSignedIntType<8 * KIND>; |
| 38 | }; |
| 39 | |
| 40 | // TODO: REAL/COMPLEX(2 & 3) |
| 41 | template <> struct CppTypeForHelper<TypeCategory::Real, 4> { |
| 42 | using type = float; |
| 43 | }; |
| 44 | template <> struct CppTypeForHelper<TypeCategory::Real, 8> { |
| 45 | using type = double; |
| 46 | }; |
| 47 | #if LDBL_MANT_DIG == 64 |
| 48 | template <> struct CppTypeForHelper<TypeCategory::Real, 10> { |
| 49 | using type = long double; |
| 50 | }; |
| 51 | #endif |
| 52 | #if LDBL_MANT_DIG == 113 |
| 53 | using CppFloat128Type = long double; |
| 54 | #elif HAS_FLOAT128 |
| 55 | using CppFloat128Type = __float128; |
| 56 | #endif |
| 57 | #if LDBL_MANT_DIG == 113 || HAS_FLOAT128 |
| 58 | template <> struct CppTypeForHelper<TypeCategory::Real, 16> { |
| 59 | using type = CppFloat128Type; |
| 60 | }; |
| 61 | #endif |
| 62 | |
| 63 | template <int KIND> struct CppTypeForHelper<TypeCategory::Complex, KIND> { |
| 64 | using type = std::complex<CppTypeFor<TypeCategory::Real, KIND>>; |
| 65 | }; |
| 66 | |
| 67 | template <> struct CppTypeForHelper<TypeCategory::Character, 1> { |
| 68 | using type = char; |
| 69 | }; |
| 70 | template <> struct CppTypeForHelper<TypeCategory::Character, 2> { |
| 71 | using type = char16_t; |
| 72 | }; |
| 73 | template <> struct CppTypeForHelper<TypeCategory::Character, 4> { |
| 74 | using type = char32_t; |
| 75 | }; |
| 76 | |
| 77 | template <int KIND> struct CppTypeForHelper<TypeCategory::Logical, KIND> { |
| 78 | using type = common::HostSignedIntType<8 * KIND>; |
| 79 | }; |
| 80 | template <> struct CppTypeForHelper<TypeCategory::Logical, 1> { |
| 81 | using type = bool; |
| 82 | }; |
| 83 | |
| 84 | } // namespace Fortran::runtime |
| 85 | #endif // FORTRAN_RUNTIME_CPP_TYPE_H_ |
| 86 |
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