3aba9264b3
Implement a selection of intrinsic module procedures that involve exceptions. - IEEE_GET_FLAG - IEEE_GET_HALTING_MODE - IEEE_GET_MODES - IEEE_GET_STATUS - IEEE_LOGB - [f23] IEEE_MAX, IEEE_MAX_MAG, IEEE_MAX_NUM, IEEE_MAX_NUM_MAG - [f23] IEEE_MIN, IEEE_MIN_MAG, IEEE_MIN_NUM, IEEE_MIN_NUM_MAG - IEEE_QUIET_EQ, IEEE_QUIET_GE, IEEE_QUIET_GT, - IEEE_QUIET_LE, IEEE_QUIET_LT, IEEE_QUIET_NE - IEEE_SET_FLAG - IEEE_SET_HALTING_MODE - IEEE_SET_MODES - IEEE_SET_STATUS - IEEE_SIGNALING_EQ, IEEE_SIGNALING_GE, IEEE_SIGNALING_GT, - IEEE_SIGNALING_LE, IEEE_SIGNALING_LT, IEEE_SIGNALING_NE - IEEE_SUPPORT_FLAG - IEEE_SUPPORT_HALTING
100 lines
3.0 KiB
Fortran
100 lines
3.0 KiB
Fortran
!===-- module/iso_c_binding.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 2018, clause 18.2
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module iso_c_binding
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use __fortran_builtins, only: &
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c_associated => __builtin_c_associated, &
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c_funloc => __builtin_c_funloc, &
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c_funptr => __builtin_c_funptr, &
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c_f_pointer => __builtin_c_f_pointer, &
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c_loc => __builtin_c_loc, &
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c_null_funptr => __builtin_c_null_funptr, &
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c_null_ptr => __builtin_c_null_ptr, &
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c_ptr => __builtin_c_ptr, &
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c_sizeof => sizeof, &
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operator(==), operator(/=)
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! Table 18.2 (in clause 18.3.1)
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! TODO: Specialize (via macros?) for alternative targets
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integer, parameter :: &
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c_int8_t = 1, &
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c_int16_t = 2, &
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c_int32_t = 4, &
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c_int64_t = 8, &
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c_int128_t = 16 ! anticipating future addition
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integer, parameter :: &
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c_int = c_int32_t, &
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c_short = c_int16_t, &
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c_long = c_int64_t, &
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c_long_long = c_int64_t, &
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c_signed_char = c_int8_t, &
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c_size_t = kind(c_sizeof(1)), &
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c_intmax_t = c_int128_t, &
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c_intptr_t = c_size_t, &
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c_ptrdiff_t = c_size_t
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integer, parameter :: &
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c_int_least8_t = c_int8_t, &
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c_int_fast8_t = c_int8_t, &
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c_int_least16_t = c_int16_t, &
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c_int_fast16_t = c_int16_t, &
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c_int_least32_t = c_int32_t, &
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c_int_fast32_t = c_int32_t, &
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c_int_least64_t = c_int64_t, &
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c_int_fast64_t = c_int64_t, &
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c_int_least128_t = c_int128_t, &
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c_int_fast128_t = c_int128_t
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integer, parameter :: &
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c_float = 4, &
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c_double = 8, &
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#if __x86_64__
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c_long_double = 10
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#else
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c_long_double = 16
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#endif
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integer, parameter :: &
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c_float_complex = c_float, &
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c_double_complex = c_double, &
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c_long_double_complex = c_long_double
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integer, parameter :: c_bool = 1
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integer, parameter :: c_char = 1
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! C characters with special semantics
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character(kind=c_char, len=1), parameter :: c_null_char = achar(0)
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character(kind=c_char, len=1), parameter :: c_alert = achar(7)
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character(kind=c_char, len=1), parameter :: c_backspace = achar(8)
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character(kind=c_char, len=1), parameter :: c_form_feed = achar(12)
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character(kind=c_char, len=1), parameter :: c_new_line = achar(10)
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character(kind=c_char, len=1), parameter :: c_carriage_return = achar(13)
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character(kind=c_char, len=1), parameter :: c_horizontal_tab = achar(9)
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character(kind=c_char, len=1), parameter :: c_vertical_tab = achar(11)
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interface c_f_procpointer
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module procedure c_f_procpointer
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end interface
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! gfortran extensions
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integer, parameter :: &
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c_float128 = 16, &
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c_float128_complex = c_float128
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contains
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subroutine c_f_procpointer(cptr, fptr)
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type(c_funptr), intent(in) :: cptr
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procedure(), pointer, intent(out) :: fptr
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! TODO: implement
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end subroutine c_f_procpointer
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end module iso_c_binding
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