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iso_fortran_env.f90
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!===-- module/iso_fortran_env.f90 ------------------------------------------===!
!
! Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
! See https://llvm.org/LICENSE.txt for license information.
! SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
!
!===------------------------------------------------------------------------===!
! See Fortran 2018, clause 16.10.2
! TODO: These are placeholder values so that some tests can be run.
include '../include/flang/Runtime/magic-numbers.h' ! for IOSTAT= error/end code values
module iso_fortran_env
use __Fortran_builtins, only: &
event_type => __builtin_event_type, &
lock_type => __builtin_lock_type, &
team_type => __builtin_team_type
implicit none
integer, parameter :: atomic_int_kind = selected_int_kind(18)
integer, parameter :: atomic_logical_kind = atomic_int_kind
! TODO: Use PACK([x],test) in place of the array constructor idiom
! [(x, integer::j=1,COUNT([test]))] below once PACK() can be folded.
integer, parameter, private :: &
selectedASCII = selected_char_kind('ASCII'), &
selectedUCS_2 = selected_char_kind('UCS-2'), &
selectedUnicode = selected_char_kind('ISO_10646')
integer, parameter :: character_kinds(*) = [ &
[(selectedASCII, integer :: j=1, count([selectedASCII >= 0]))], &
[(selectedUCS_2, integer :: j=1, count([selectedUCS_2 >= 0]))], &
[(selectedUnicode, integer :: j=1, count([selectedUnicode >= 0]))]]
integer, parameter, private :: &
selectedInt8 = selected_int_kind(2), &
selectedInt16 = selected_int_kind(4), &
selectedInt32 = selected_int_kind(9), &
selectedInt64 = selected_int_kind(18),&
selectedInt128 = selected_int_kind(38), &
safeInt8 = merge(selectedInt8, selected_int_kind(0), &
selectedInt8 >= 0), &
safeInt16 = merge(selectedInt16, selected_int_kind(0), &
selectedInt16 >= 0), &
safeInt32 = merge(selectedInt32, selected_int_kind(0), &
selectedInt32 >= 0), &
safeInt64 = merge(selectedInt64, selected_int_kind(0), &
selectedInt64 >= 0), &
safeInt128 = merge(selectedInt128, selected_int_kind(0), &
selectedInt128 >= 0)
integer, parameter :: &
int8 = merge(selectedInt8, merge(-2, -1, selectedInt8 >= 0), &
digits(int(0,kind=safeInt8)) == 7), &
int16 = merge(selectedInt16, merge(-2, -1, selectedInt16 >= 0), &
digits(int(0,kind=safeInt16)) == 15), &
int32 = merge(selectedInt32, merge(-2, -1, selectedInt32 >= 0), &
digits(int(0,kind=safeInt32)) == 31), &
int64 = merge(selectedInt64, merge(-2, -1, selectedInt64 >= 0), &
digits(int(0,kind=safeInt64)) == 63), &
int128 = merge(selectedInt128, merge(-2, -1, selectedInt128 >= 0), &
digits(int(0,kind=safeInt128)) == 127)
integer, parameter :: integer_kinds(*) = [ &
selected_int_kind(0), &
((selected_int_kind(k), &
integer :: j=1, count([selected_int_kind(k) >= 0 .and. &
selected_int_kind(k) /= &
selected_int_kind(k-1)])), &
integer :: k=1, 39)]
integer, parameter :: &
logical8 = int8, logical16 = int16, logical32 = int32, logical64 = int64
integer, parameter :: logical_kinds(*) = [ &
[(logical8, integer :: j=1, count([logical8 >= 0]))], &
[(logical16, integer :: j=1, count([logical16 >= 0]))], &
[(logical32, integer :: j=1, count([logical32 >= 0]))], &
[(logical64, integer :: j=1, count([logical64 >= 0]))]]
integer, parameter, private :: &
selectedReal16 = selected_real_kind(3, 4), & ! IEEE half
selectedBfloat16 = selected_real_kind(2, 37), & ! truncated IEEE single
selectedReal32 = selected_real_kind(6, 37), & ! IEEE single
selectedReal64 = selected_real_kind(15, 307), & ! IEEE double
selectedReal80 = selected_real_kind(18, 4931), & ! 80x87 extended
selectedReal64x2 = selected_real_kind(31, 307), & ! "double-double"
selectedReal128 = selected_real_kind(33, 4931), & ! IEEE quad
safeReal16 = merge(selectedReal16, selected_real_kind(0,0), &
selectedReal16 >= 0), &
safeBfloat16 = merge(selectedBfloat16, selected_real_kind(0,0), &
selectedBfloat16 >= 0), &
safeReal32 = merge(selectedReal32, selected_real_kind(0,0), &
selectedReal32 >= 0), &
safeReal64 = merge(selectedReal64, selected_real_kind(0,0), &
selectedReal64 >= 0), &
safeReal80 = merge(selectedReal80, selected_real_kind(0,0), &
selectedReal80 >= 0), &
safeReal64x2 = merge(selectedReal64x2, selected_real_kind(0,0), &
selectedReal64x2 >= 0), &
safeReal128 = merge(selectedReal128, selected_real_kind(0,0), &
selectedReal128 >= 0)
integer, parameter :: &
real16 = merge(selectedReal16, merge(-2, -1, selectedReal16 >= 0), &
digits(real(0,kind=safeReal16)) == 11), &
bfloat16 = merge(selectedBfloat16, merge(-2, -1, selectedBfloat16 >= 0), &
digits(real(0,kind=safeBfloat16)) == 8), &
real32 = merge(selectedReal32, merge(-2, -1, selectedReal32 >= 0), &
digits(real(0,kind=safeReal32)) == 24), &
real64 = merge(selectedReal64, merge(-2, -1, selectedReal64 >= 0), &
digits(real(0,kind=safeReal64)) == 53), &
real80 = merge(selectedReal80, merge(-2, -1, selectedReal80 >= 0), &
digits(real(0,kind=safeReal80)) == 64), &
real64x2 = merge(selectedReal64x2, merge(-2, -1, selectedReal64x2 >= 0), &
digits(real(0,kind=safeReal64x2)) == 106), &
real128 = merge(selectedReal128, merge(-2, -1, selectedReal128 >= 0), &
digits(real(0,kind=safeReal128)) == 113)
integer, parameter :: real_kinds(*) = [ &
[(real16, integer :: j=1, count([real16 >= 0]))], &
[(bfloat16, integer :: j=1, count([bfloat16 >= 0]))], &
[(real32, integer :: j=1, count([real32 >= 0]))], &
[(real64, integer :: j=1, count([real64 >= 0]))], &
[(real80, integer :: j=1, count([real80 >= 0]))], &
[(real64x2, integer :: j=1, count([real64x2 >= 0]))], &
[(real128, integer :: j=1, count([real128 >= 0]))]]
integer, parameter :: current_team = -1, initial_team = -2, parent_team = -3
integer, parameter :: input_unit = 5, output_unit = 6
integer, parameter :: error_unit = output_unit
integer, parameter :: iostat_end = -1, iostat_eor = -2
integer, parameter :: iostat_inquire_internal_unit = -1
integer, parameter :: character_storage_size = 8
integer, parameter :: file_storage_size = 8
integer, parameter :: numeric_storage_size = 32
integer, parameter :: stat_failed_image = FORTRAN_RUNTIME_STAT_FAILED_IMAGE
integer, parameter :: stat_locked = FORTRAN_RUNTIME_STAT_LOCKED
integer, parameter :: stat_locked_other_image = FORTRAN_RUNTIME_STAT_LOCKED_OTHER_IMAGE
integer, parameter :: stat_stopped_image = FORTRAN_RUNTIME_STAT_STOPPED_IMAGE
integer, parameter :: stat_unlocked = FORTRAN_RUNTIME_STAT_UNLOCKED
integer, parameter :: stat_unlocked_failed_image = FORTRAN_RUNTIME_STAT_UNLOCKED_FAILED_IMAGE
contains
character(len=80) function compiler_options()
compiler_options = 'COMPILER_OPTIONS() not yet implemented'
end function compiler_options
character(len=80) function compiler_version()
compiler_version = 'f18 in development'
end function compiler_version
end module iso_fortran_env