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   {
 106     round_indeterminate       = -1,
 107     round_toward_zero         = 0,
 108     round_to_nearest          = 1,
 109     round_toward_infinity     = 2,
 110     round_toward_neg_infinity = 3
 111   };
 112
 113   enum float_denorm_style
 114   {
 115     denorm_indeterminate = -1,
 116     denorm_absent        = 0,
 117     denorm_present       = 1
 118   };
 119
 120   template<typename _Tp>
 121     struct numeric_limits
 122     {
 123       static const bool is_specialized = false;
 124
 125       static _Tp min() throw() { return static_cast<_Tp>(0); }
 126       static _Tp max() throw() { return static_cast<_Tp>(0); }
 127
 128       static const int digits = 0;
 129       static const int digits10 = 0;
 130       static const bool is_signed = false;
 131       static const bool is_integer = false;
 132       static const bool is_exact = false;
 133       static const int radix = 0;
 134
 135       static _Tp epsilon() throw() { return static_cast<_Tp>(0); }
 136       static _Tp round_error() throw() { return static_cast<_Tp>(0); }
 137
 138       static const int min_exponent = 0;
 139       static const int min_exponent10 = 0;
 140       static const int max_exponent = 0;
 141       static const int max_exponent10 = 0;
 142
 143       static const bool has_infinity = false;
 144       static const bool has_quiet_NaN = false;
 145       static const bool has_signaling_NaN = false;
 146       static const float_denorm_style has_denorm = denorm_absent;
 147       static const bool has_denorm_loss = false;
 148
 149       static _Tp infinity() throw()  { return static_cast<_Tp>(0); }
 150       static _Tp quiet_NaN() throw() { return static_cast<_Tp>(0); }
 151       static _Tp signaling_NaN() throw() { return static_cast<_Tp>(0); }
 152       static _Tp denorm_min() throw() { return static_cast<_Tp>(0); }
 153
 154       static const bool is_iec559 = false;
 155       static const bool is_bounded = false;
 156       static const bool is_modulo = false;
 157
 158       static const bool traps = false;
 159       static const bool tinyness_before = false;
 160       static const float_round_style round_style = round_toward_zero;
 161     };
 162
 163   template<typename _Tp>
 164     const bool
 165     numeric_limits<_Tp>::is_specialized;
 166
 167   template<typename _Tp>
 168     const int
 169     numeric_limits<_Tp>::digits;
 170
 171   template<typename _Tp>
 172     const int
 173     numeric_limits<_Tp>::digits10;
 174
 175   template<typename _Tp>
 176     const bool
 177     numeric_limits<_Tp>::is_signed;
 178
 179   template<typename _Tp>
 180     const bool
 181     numeric_limits<_Tp>::is_integer;
 182
 183   template<typename _Tp>
 184     const bool
 185     numeric_limits<_Tp>::is_exact;
 186
 187   template<typename _Tp>
 188     const int
 189     numeric_limits<_Tp>::radix;
 190
 191   template<typename _Tp>
 192     const int
 193     numeric_limits<_Tp>::min_exponent;
 194
 195   template<typename _Tp>
 196     const int
 197     numeric_limits<_Tp>::min_exponent10;
 198
 199   template<typename _Tp>
 200     const int
 201     numeric_limits<_Tp>::max_exponent;
 202
 203   template<typename _Tp>
 204     const int
 205     numeric_limits<_Tp>::max_exponent10;
 206
 207   template<typename _Tp>
 208     const bool
 209     numeric_limits<_Tp>::has_infinity;
 210
 211   template<typename _Tp>
 212     const bool
 213     numeric_limits<_Tp>::has_quiet_NaN;
 214
 215   template<typename _Tp>
 216     const bool
 217     numeric_limits<_Tp>::has_signaling_NaN;
 218
 219   template<typename _Tp>
 220     const float_denorm_style
 221     numeric_limits<_Tp>::has_denorm;
 222
 223   template<typename _Tp>
 224     const bool
 225     numeric_limits<_Tp>::has_denorm_loss;
 226
 227   template<typename _Tp>
 228     const bool
 229     numeric_limits<_Tp>::is_iec559;
 230
 231   template<typename _Tp>
 232     const bool
 233     numeric_limits<_Tp>::is_bounded;
 234
 235   template<typename _Tp>
 236     const bool
 237     numeric_limits<_Tp>::is_modulo;
 238
 239   template<typename _Tp>
 240     const bool
 241     numeric_limits<_Tp>::traps;
 242
 243   template<typename _Tp>
 244     const bool
 245     numeric_limits<_Tp>::tinyness_before;
 246
 247   template<typename _Tp>
 248     const float_round_style
 249     numeric_limits<_Tp>::round_style;
 250
 251   template<typename _Tp> _Tp __limits_infinity();
 252   template<typename _Tp> _Tp __limits_quiet_NaN();
 253   template<typename _Tp> _Tp __limits_signaling_NaN();
 254   template<typename _Tp> _Tp __limits_denorm_min();
 255
 256 EOF
 257
 258 # Must turn off exceptions, because the C++ exception handling support
 259 # routines have not been built yet.
 260 echo "$CC -I$BUILD_DIR -fno-exceptions \
 261     -o $BUILD_DIR/src/gen-num-limits $SRC_DIR/src/gen-num-limits.cc"
 262
 263 { $CC -I$BUILD_DIR -fno-exceptions \
 264     -o "$BUILD_DIR/src/gen-num-limits" "$SRC_DIR/src/gen-num-limits.cc"
 265 } || {
 266   echo "gen-num-limits failed to build, exiting."
 267   exit 1
 268 }
 269
 270 "$BUILD_DIR/src/gen-num-limits" >> $OUT_H-t || {
 271   echo "gen-num-limits failed to execute, exiting."
 272   exit 1
 273 }
 274
 275 cat <<EOF >> $OUT_H-t
 276 } // namespace std
 277
 278 #endif // _CPP_NUMERIC_LIMITS
 279 EOF
 280
 281 trait_name=numeric_limits
 282
 283 cat <<EOF > $OUT_C-t
 284 // Static data members of -*- C++ -*- numeric_limits classes
 285
 286 // Copyright (C) 1999, 2000 Free Software Foundation, Inc.
 287 //
 288 // This file is part of the GNU ISO C++ Library.  This library is free
 289 // software; you can redistribute it and/or modify it under the
 290 // terms of the GNU General Public License as published by the
 291 // Free Software Foundation; either version 2, or (at your option)
 292 // any later version.
 293
 294 // This library is distributed in the hope that it will be useful,
 295 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 296 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 297 // GNU General Public License for more details.
 298
 299 // You should have received a copy of the GNU General Public License along
 300 // with this library; see the file COPYING.  If not, write to the Free
 301 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
 302 // USA.
 303
 304 // As a special exception, you may use this file as part of a free software
 305 // library without restriction.  Specifically, if other files instantiate
 306 // templates or use macros or inline functions from this file, or you compile
 307 // this file and link it with other files to produce an executable, this
 308 // file does not by itself cause the resulting executable to be covered by
 309 // the GNU General Public License.  This exception does not however
 310 // invalidate any other reasons why the executable file might be covered by
 311 // the GNU General Public License.
 312
 313 // Written by Gabriel Dos Reis <Gabriel.Dos-Reis@cmla.ens-cachan.fr>
 314
 315 //
 316 // ISO C++ 14882:1998
 317 // 18.2.1
 318 //
 319
 320 #include <bits/std_limits.h>
 321 namespace std {
 322 EOF
 323
 324 for type_name in bool char 'signed char' 'unsigned char' \
 325             short 'unsigned short' int 'unsigned int' \
 326             long 'unsigned long' 'long long' 'unsigned long long' \
 327             float double 'long double'
 328     do
 329      grep "<$type_name>" $OUT_H-t >/dev/null 2>&1 || continue
 330      cat <<EOF >> $OUT_C-t
 331
 332     const bool $trait_name<$type_name>::is_specialized;
 333     const int  $trait_name<$type_name>::digits;
 334     const int  $trait_name<$type_name>::digits10;
 335     const bool $trait_name<$type_name>::is_signed;
 336     const bool $trait_name<$type_name>::is_integer;
 337     const bool $trait_name<$type_name>::is_exact;
 338     const int  $trait_name<$type_name>::radix;
 339     const int  $trait_name<$type_name>::min_exponent;
 340     const int  $trait_name<$type_name>::min_exponent10;
 341     const int  $trait_name<$type_name>::max_exponent;
 342     const int  $trait_name<$type_name>::max_exponent10;
 343     const bool $trait_name<$type_name>::has_infinity;
 344     const bool $trait_name<$type_name>::has_quiet_NaN;
 345     const bool $trait_name<$type_name>::has_signaling_NaN;
 346     const float_denorm_style $trait_name<$type_name>::has_denorm;
 347     const bool $trait_name<$type_name>::has_denorm_loss;
 348     const bool $trait_name<$type_name>::is_iec559;
 349     const bool $trait_name<$type_name>::is_bounded;
 350     const bool $trait_name<$type_name>::is_modulo;
 351     const bool $trait_name<$type_name>::traps;
 352     const bool $trait_name<$type_name>::tinyness_before;
 353     const float_round_style $trait_name<$type_name>::round_style;
 354 EOF
 355
 356 done
 357
 358 cat <<EOF >> $OUT_C-t
 359 } // namespace std
 360
 361
 362 EOF
 363
 364 mv $OUT_C-t $OUT_C
 365 mv $OUT_H-t $OUT_H
 366
 367