libstdc++-v3/mknumeric_limits

   1 #! /bin/sh
   2
   3 # mknumeric_limits: generates
   4 # - part of bits/std_limits.h completed by gen-num-limits.cc
   5 # - src/limitsMEMBERS.cc that contains the definition of various
   6 #   static data members of specialization of class template numeric_limits
   7 #
   8
   9 echo "running mknumeric_limits"
  10
  11 BUILD_DIR=$1
  12 if [ ! -d "$BUILD_DIR" ]; then
  13   echo "build directory $BUILD_DIR not found, exiting."
  14   exit 1
  15 fi
  16
  17 if [ ! -d "$BUILD_DIR/include" ]; then
  18   mkdir  "$BUILD_DIR/include"
  19 fi
  20
  21 if [ ! -d "$BUILD_DIR/include/bits" ]; then
  22   mkdir  "$BUILD_DIR/include/bits"
  23 fi
  24
  25 if [ ! -d "$BUILD_DIR/src" ]; then
  26   mkdir  "$BUILD_DIR/src"
  27 fi
  28
  29 OUT_H="$BUILD_DIR/include/bits/std_limits.h"
  30 OUT_C="$BUILD_DIR/src/limitsMEMBERS.cc"
  31
  32 if [ -f $OUT_C ]; then
  33     rm -f $OUT_H $OUT_C $OUT_H-t $OUT_C-t
  34 fi
  35
  36 SRC_DIR=$2
  37 if [ ! -d "$SRC_DIR" ]; then
  38   echo "source directory $SRC_DIR not found, exiting."
  39   exit 1
  40 fi
  41
  42 XCOMPILE=$3
  43 if [ $XCOMPILE -eq 1 ]; then
  44   echo "using default values for cross compiles"
  45   cp $SRC_DIR/include/bits/limits_generic.h $OUT_H
  46   cp $SRC_DIR/src/limits_generic.cc $OUT_C
  47   exit 0;
  48 fi
  49
  50 CC=${CC="$BUILD_DIR/../../gcc/xgcc -B$BUILD_DIR/../../gcc/"}
  51
  52 # We output to a temporary file, so that we don't appear to have
  53 # succeeded unless we actually do.
  54 cat <<EOF > $OUT_H-t
  55 // The template and inlines for the -*- C++ -*- numeric_limits classes.
  56
  57 // Copyright (C) 1999-2001 Free Software Foundation, Inc.
  58 //
  59 // This file is part of the GNU ISO C++ Library.  This library is free
  60 // software; you can redistribute it and/or modify it under the
  61 // terms of the GNU General Public License as published by the
  62 // Free Software Foundation; either version 2, or (at your option)
  63 // any later version.
  64
  65 // This library is distributed in the hope that it will be useful,
  66 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  67 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  68 // GNU General Public License for more details.
  69
  70 // You should have received a copy of the GNU General Public License along
  71 // with this library; see the file COPYING.  If not, write to the Free
  72 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  73 // USA.
  74
  75 // As a special exception, you may use this file as part of a free software
  76 // library without restriction.  Specifically, if other files instantiate
  77 // templates or use macros or inline functions from this file, or you compile
  78 // this file and link it with other files to produce an executable, this
  79 // file does not by itself cause the resulting executable to be covered by
  80 // the GNU General Public License.  This exception does not however
  81 // invalidate any other reasons why the executable file might be covered by
  82 // the GNU General Public License.
  83
  84 // Note: this is not a conforming implementation.
  85 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@cmla.ens-cachan.fr>
  86
  87 //
  88 // THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT!
  89 //
  90
  91 //
  92 // ISO 14882:1998
  93 // 18.2.1
  94 //
  95
  96 #ifndef _CPP_NUMERIC_LIMITS
  97 #define _CPP_NUMERIC_LIMITS 1
  98
  99 #include <bits/c++config.h>
 100 #include <bits/std_cfloat.h>
 101
 102 namespace std {
 103
 104     enum float_round_style {
 105         round_indeterminate       = -1,
 106         round_toward_zero         = 0,
 107         round_to_nearest          = 1,
 108         round_toward_infinity     = 2,
 109         round_toward_neg_infinity = 3
 110     };
 111
 112     enum float_denorm_style {
 113         denorm_indeterminate = -1,
 114         denorm_absent        = 0,
 115         denorm_present       = 1
 116     };
 117
 118     template<typename _Tp> struct numeric_limits {
 119         static const bool is_specialized = false;
 120
 121         static _Tp min() throw() { return static_cast<_Tp>(0); }
 122         static _Tp max() throw() { return static_cast<_Tp>(0); }
 123
 124         static const int digits = 0;
 125         static const int digits10 = 0;
 126         static const bool is_signed = false;
 127         static const bool is_integer = false;
 128         static const bool is_exact = false;
 129         static const int radix = 0;
 130
 131         static _Tp epsilon() throw() { return static_cast<_Tp>(0); }
 132         static _Tp round_error() throw() { return static_cast<_Tp>(0); }
 133
 134         static const int min_exponent = 0;
 135         static const int min_exponent10 = 0;
 136         static const int max_exponent = 0;
 137         static const int max_exponent10 = 0;
 138
 139         static const bool has_infinity = false;
 140         static const bool has_quiet_NaN = false;
 141         static const bool has_signaling_NaN = false;
 142         static const float_denorm_style has_denorm = denorm_absent;
 143         static const bool has_denorm_loss = false;
 144
 145         static _Tp infinity() throw()  { return static_cast<_Tp>(0); }
 146         static _Tp quiet_NaN() throw() { return static_cast<_Tp>(0); }
 147         static _Tp signaling_NaN() throw() { return static_cast<_Tp>(0); }
 148         static _Tp denorm_min() throw() { return static_cast<_Tp>(0); }
 149
 150         static const bool is_iec559 = false;
 151         static const bool is_bounded = false;
 152         static const bool is_modulo = false;
 153
 154         static const bool traps = false;
 155         static const bool tinyness_before = false;
 156         static const float_round_style round_style = round_toward_zero;
 157     };
 158
 159     template<typename _Tp> _Tp __limits_infinity();
 160     template<typename _Tp> _Tp __limits_quiet_NaN();
 161     template<typename _Tp> _Tp __limits_signaling_NaN();
 162     template<typename _Tp> _Tp __limits_denorm_min();
 163
 164 EOF
 165
 166 # Must turn off exceptions, because the C++ exception handling support
 167 # routines have not been built yet.
 168 echo "$CC -I$BUILD_DIR -fno-exceptions \
 169     -o $BUILD_DIR/src/gen-num-limits $SRC_DIR/src/gen-num-limits.cc"
 170
 171 { $CC -I$BUILD_DIR -fno-exceptions \
 172     -o "$BUILD_DIR/src/gen-num-limits" "$SRC_DIR/src/gen-num-limits.cc"
 173 } || {
 174   echo "gen-num-limits failed to build, exiting."
 175   exit 1
 176 }
 177
 178 "$BUILD_DIR/src/gen-num-limits" >> $OUT_H-t || {
 179   echo "gen-num-limits failed to execute, exiting."
 180   exit 1
 181 }
 182
 183 cat <<EOF >> $OUT_H-t
 184 } // namespace std
 185
 186 #endif // _CPP_NUMERIC_LIMITS
 187 EOF
 188
 189 trait_name=numeric_limits
 190
 191 cat <<EOF > $OUT_C-t
 192 // Static data members of -*- C++ -*- numeric_limits classes
 193
 194 // Copyright (C) 1999, 2000 Free Software Foundation, Inc.
 195 //
 196 // This file is part of the GNU ISO C++ Library.  This library is free
 197 // software; you can redistribute it and/or modify it under the
 198 // terms of the GNU General Public License as published by the
 199 // Free Software Foundation; either version 2, or (at your option)
 200 // any later version.
 201
 202 // This library is distributed in the hope that it will be useful,
 203 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 204 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 205 // GNU General Public License for more details.
 206
 207 // You should have received a copy of the GNU General Public License along
 208 // with this library; see the file COPYING.  If not, write to the Free
 209 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
 210 // USA.
 211
 212 // As a special exception, you may use this file as part of a free software
 213 // library without restriction.  Specifically, if other files instantiate
 214 // templates or use macros or inline functions from this file, or you compile
 215 // this file and link it with other files to produce an executable, this
 216 // file does not by itself cause the resulting executable to be covered by
 217 // the GNU General Public License.  This exception does not however
 218 // invalidate any other reasons why the executable file might be covered by
 219 // the GNU General Public License.
 220
 221 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@cmla.ens-cachan.fr>
 222
 223 //
 224 // ISO C++ 14882:1998
 225 // 18.2.1
 226 //
 227
 228 #include <bits/std_limits.h>
 229 namespace std {
 230 EOF
 231
 232 for type_name in bool char 'signed char' 'unsigned char' \
 233             short 'unsigned short' int 'unsigned int' \
 234             long 'unsigned long' 'long long' 'unsigned long long' \
 235             float double 'long double'
 236     do
 237      grep "<$type_name>" $OUT_H-t >/dev/null 2>&1 || continue
 238      cat <<EOF >> $OUT_C-t
 239
 240     const bool $trait_name<$type_name>::is_specialized;
 241     const int  $trait_name<$type_name>::digits;
 242     const int  $trait_name<$type_name>::digits10;
 243     const bool $trait_name<$type_name>::is_signed;
 244     const bool $trait_name<$type_name>::is_integer;
 245     const bool $trait_name<$type_name>::is_exact;
 246     const int  $trait_name<$type_name>::radix;
 247     const int  $trait_name<$type_name>::min_exponent;
 248     const int  $trait_name<$type_name>::min_exponent10;
 249     const int  $trait_name<$type_name>::max_exponent;
 250     const int  $trait_name<$type_name>::max_exponent10;
 251     const bool $trait_name<$type_name>::has_infinity;
 252     const bool $trait_name<$type_name>::has_quiet_NaN;
 253     const bool $trait_name<$type_name>::has_signaling_NaN;
 254     const float_denorm_style $trait_name<$type_name>::has_denorm;
 255     const bool $trait_name<$type_name>::has_denorm_loss;
 256     const bool $trait_name<$type_name>::is_iec559;
 257     const bool $trait_name<$type_name>::is_bounded;
 258     const bool $trait_name<$type_name>::is_modulo;
 259     const bool $trait_name<$type_name>::traps;
 260     const bool $trait_name<$type_name>::tinyness_before;
 261     const float_round_style $trait_name<$type_name>::round_style;
 262 EOF
 263
 264 done
 265
 266 cat <<EOF >> $OUT_C-t
 267 } // namespace std
 268
 269
 270 EOF
 271
 272 mv $OUT_C-t $OUT_C
 273 mv $OUT_H-t $OUT_H