1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
#! /bin/sh
# Script to generate Fortran 2003 interface declarations for FFTW from
# the fftw3.h header file.
# This is designed so that the Fortran caller can do:
# use, intrinsic :: iso_c_binding
# implicit none
# include 'fftw3.f03'
# and then call the C FFTW functions directly, with type checking.
echo "! Generated automatically. DO NOT EDIT!"
echo
# C_FFTW_R2R_KIND is determined by configure and inserted by the Makefile
# echo " integer, parameter :: C_FFTW_R2R_KIND = @C_FFTW_R2R_KIND@"
# Extract constants
perl -pe 's/([A-Z0-9_]+)=([+-]?[0-9]+)/\n integer\(C_INT\), parameter :: \1 = \2\n/g' < fftw3.h | grep 'integer(C_INT)'
perl -pe 's/#define +([A-Z0-9_]+) +\(([+-]?[0-9]+)U?\)/\n integer\(C_INT\), parameter :: \1 = \2\n/g' < fftw3.h | grep 'integer(C_INT)'
perl -pe 'if (/#define +([A-Z0-9_]+) +\(([0-9]+)U? *<< *([0-9]+)\)/) { print "\n integer\(C_INT\), parameter :: $1 = ",$2 << $3,"\n"; }' < fftw3.h | grep 'integer(C_INT)'
# Extract function declarations
for p in $*; do
if test "$p" = "d"; then p=""; fi
echo
cat <<EOF
type, bind(C) :: fftw${p}_iodim
integer(C_INT) n, is, os
end type fftw${p}_iodim
type, bind(C) :: fftw${p}_iodim64
integer(C_INTPTR_T) n, is, os
end type fftw${p}_iodim64
EOF
echo
echo " interface"
gcc -D__GNUC__=5 -D__i386__ -E fftw3.h |grep "fftw${p}_plan_dft" |tr ';' '\n' | grep -v "fftw${p}_execute(" | perl genf03.pl
echo " end interface"
done
|
