libgfortran/mk-kinds-h.sh

   1 #!/bin/sh
   2
   3 compile="$1"
   4
   5 # Possible types must be listed in ascending order
   6 possible_integer_kinds="1 2 4 8 16"
   7 possible_real_kinds="4 8 10 16"
   8
   9
  10 largest=""
  11 for k in $possible_integer_kinds; do
  12   echo "  integer (kind=$k) :: i" > tmp$$.f90
  13   echo "  end" >> tmp$$.f90
  14   if $compile -c tmp$$.f90 > /dev/null 2>&1; then
  15     s=`expr 8 \* $k`
  16     largest="$k"
  17
  18     if [ $s -eq 128 ]; then
  19       prefix="__"
  20     else
  21       prefix=""
  22     fi
  23
  24     echo "typedef ${prefix}int${s}_t GFC_INTEGER_${k};"
  25     echo "typedef ${prefix}uint${s}_t GFC_UINTEGER_${k};"
  26     echo "typedef GFC_INTEGER_${k} GFC_LOGICAL_${k};"
  27     echo "#define HAVE_GFC_INTEGER_${k}"
  28   fi
  29   rm -f tmp$$.*
  30 done
  31
  32 echo "#define GFC_INTEGER_LARGEST GFC_INTEGER_${largest}"
  33 echo "#define GFC_UINTEGER_LARGEST GFC_UINTEGER_${largest}"
  34 echo ""
  35
  36
  37 largest_ctype=""
  38 for k in $possible_real_kinds; do
  39   echo "  real (kind=$k) :: x" > tmp$$.f90
  40   echo "  end" >> tmp$$.f90
  41   if $compile -c tmp$$.f90 > /dev/null 2>&1; then
  42     case $k in
  43       4) ctype="float" ;;
  44       8) ctype="double" ;;
  45       10) ctype="long double" ;;
  46       16) ctype="long double" ;;
  47       *) echo "$0: Unknown type" >&2 ; exit 1 ;;
  48     esac
  49     largest_ctype="$ctype"
  50     echo "typedef ${ctype} GFC_REAL_${k};"
  51     echo "typedef complex ${ctype} GFC_COMPLEX_${k};"
  52     echo "#define HAVE_GFC_REAL_${k}"
  53   fi
  54   rm -f tmp$$.*
  55 done
  56
  57 case $largest_ctype in
  58   float) echo "#define GFC_REAL_LARGEST_FORMAT \"\"" ;;
  59   double) echo "#define GFC_REAL_LARGEST_FORMAT \"l\"" ;;
  60   "long double") echo "#define GFC_REAL_LARGEST_FORMAT \"L\"" ;;
  61   *) echo "$0: Unknown type" >&2 ; exit 1 ;;
  62 esac
  63 echo "#define GFC_REAL_LARGEST $largest_ctype"
  64
  65 exit 0