43 lines
1.4 KiB
Bash
Executable file
43 lines
1.4 KiB
Bash
Executable file
#! /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
|