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fc97d2e68b
Implement the UNSIGNED extension type and operations under control of a language feature flag (-funsigned). This is nearly identical to the UNSIGNED feature that has been available in Sun Fortran for years, and now implemented in GNU Fortran for gfortran 15, and proposed for ISO standardization in J3/24-116.txt. See the new documentation for details; but in short, this is C's unsigned type, with guaranteed modular arithmetic for +, -, and *, and the related transformational intrinsic functions SUM & al.
111 lines
4.4 KiB
Fortran
111 lines
4.4 KiB
Fortran
!===-- module/iso_fortran_env.f90 ------------------------------------------===!
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!
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! Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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! See https://llvm.org/LICENSE.txt for license information.
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! SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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!
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!===------------------------------------------------------------------------===!
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! See Fortran 2023, subclause 16.10.2
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#include '../include/flang/Runtime/magic-numbers.h'
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module iso_fortran_env
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use __fortran_builtins, only: &
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event_type => __builtin_event_type, &
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notify_type => __builtin_notify_type, &
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lock_type => __builtin_lock_type, &
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team_type => __builtin_team_type, &
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atomic_int_kind => __builtin_atomic_int_kind, &
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atomic_logical_kind => __builtin_atomic_logical_kind, &
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compiler_options => __builtin_compiler_options, &
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compiler_version => __builtin_compiler_version
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use iso_fortran_env_impl, only: &
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selectedInt8, selectedInt16, selectedInt32, selectedInt64, selectedInt128, &
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safeInt8, safeInt16, safeInt32, safeInt64, safeInt128, &
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int8, int16, int32, int64, int128, &
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selectedUInt8, selectedUInt16, selectedUInt32, selectedUInt64, selectedUInt128, &
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safeUInt8, safeUInt16, safeUInt32, safeUInt64, safeUInt128, &
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uint8, uint16, uint32, uint64, uint128, &
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logical8, logical16, logical32, logical64, &
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selectedReal16, selectedBfloat16, selectedReal32, &
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selectedReal64, selectedReal80, selectedReal64x2, &
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selectedReal128, &
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safeReal16, safeBfloat16, safeReal32, &
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safeReal64, safeReal80, safeReal64x2, &
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safeReal128, &
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real16, bfloat16, real32, real64, &
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real80, real64x2, real128, &
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integer_kinds => __builtin_integer_kinds, &
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real_kinds => __builtin_real_kinds, &
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logical_kinds => __builtin_logical_kinds
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implicit none
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private
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public :: event_type, notify_type, lock_type, team_type, &
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atomic_int_kind, atomic_logical_kind, compiler_options, &
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compiler_version
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integer, parameter :: &
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selectedASCII = selected_char_kind('ASCII'), &
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selectedUCS_2 = selected_char_kind('UCS-2'), &
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selectedUnicode = selected_char_kind('ISO_10646')
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integer, parameter, public :: character_kinds(*) = [ &
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pack([selectedASCII], selectedASCII >= 0), &
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pack([selectedUCS_2], selectedUCS_2 >= 0), &
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pack([selectedUnicode], selectedUnicode >= 0)]
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public :: selectedInt8, selectedInt16, selectedInt32, selectedInt64, selectedInt128, &
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safeInt8, safeInt16, safeInt32, safeInt64, safeInt128, &
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int8, int16, int32, int64, int128
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public :: selectedUInt8, selectedUInt16, selectedUInt32, selectedUInt64, selectedUInt128, &
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safeUInt8, safeUInt16, safeUInt32, safeUInt64, safeUInt128, &
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uint8, uint16, uint32, uint64, uint128
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public :: logical8, logical16, logical32, logical64
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public :: selectedReal16, selectedBfloat16, selectedReal32, &
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selectedReal64, selectedReal80, selectedReal64x2, &
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selectedReal128, &
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safeReal16, safeBfloat16, safeReal32, &
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safeReal64, safeReal80, safeReal64x2, &
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safeReal128, &
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real16, bfloat16, real32, real64, &
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real80, real64x2, real128
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public :: integer_kinds, real_kinds, logical_kinds
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integer, parameter, public :: current_team = -1, &
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initial_team = -2, &
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parent_team = -3
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integer, parameter, public :: character_storage_size = 8
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integer, parameter, public :: file_storage_size = 8
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intrinsic :: __builtin_numeric_storage_size
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! This value depends on any -fdefault-integer-N and -fdefault-real-N
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! compiler options that are active when the module file is read.
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integer, parameter, public :: numeric_storage_size = &
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__builtin_numeric_storage_size()
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! From Runtime/magic-numbers.h:
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integer, parameter, public :: &
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output_unit = FORTRAN_DEFAULT_OUTPUT_UNIT, &
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input_unit = FORTRAN_DEFAULT_INPUT_UNIT, &
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error_unit = FORTRAN_ERROR_UNIT, &
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iostat_end = FORTRAN_RUNTIME_IOSTAT_END, &
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iostat_eor = FORTRAN_RUNTIME_IOSTAT_EOR, &
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iostat_inquire_internal_unit = FORTRAN_RUNTIME_IOSTAT_INQUIRE_INTERNAL_UNIT, &
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stat_failed_image = FORTRAN_RUNTIME_STAT_FAILED_IMAGE, &
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stat_locked = FORTRAN_RUNTIME_STAT_LOCKED, &
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stat_locked_other_image = FORTRAN_RUNTIME_STAT_LOCKED_OTHER_IMAGE, &
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stat_stopped_image = FORTRAN_RUNTIME_STAT_STOPPED_IMAGE, &
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stat_unlocked = FORTRAN_RUNTIME_STAT_UNLOCKED, &
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stat_unlocked_failed_image = FORTRAN_RUNTIME_STAT_UNLOCKED_FAILED_IMAGE
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end module iso_fortran_env
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