Mercurial > hg > octave-lyh
annotate liboctave/oct-inttypes.h @ 7534:ef755c763b62
avoid more "comparison is always false due to limited range of data type" warnings from GCC
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Tue, 26 Feb 2008 17:37:37 -0500 |
| parents | 6f10bbb2854a |
| children | 6929e40fc597 |
| rev | line source |
|---|---|
| 4902 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 2004, 2005, 2006, 2007 John W. Eaton |
| 4902 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 4902 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 4902 | 20 |
| 21 */ | |
| 22 | |
| 23 #if !defined (octave_inttypes_h) | |
| 24 #define octave_inttypes_h 1 | |
| 25 | |
| 6482 | 26 #include <climits> |
| 27 | |
| 4902 | 28 #include <limits> |
| 29 #include <iostream> | |
| 30 | |
| 5828 | 31 #include "oct-types.h" |
| 4953 | 32 #include "lo-ieee.h" |
| 4969 | 33 #include "lo-mappers.h" |
| 4902 | 34 |
| 35 template <class T1, class T2> | |
| 36 class | |
| 37 octave_int_binop_traits | |
| 38 { | |
| 39 public: | |
| 40 // The return type for a T1 by T2 binary operation. | |
| 41 typedef T1 TR; | |
| 42 }; | |
| 43 | |
| 44 #define OCTAVE_INT_BINOP_TRAIT(T1, T2, T3) \ | |
| 45 template<> \ | |
| 46 class octave_int_binop_traits <T1, T2> \ | |
| 47 { \ | |
| 48 public: \ | |
| 49 typedef T3 TR; \ | |
| 50 } | |
| 51 | |
| 5828 | 52 OCTAVE_INT_BINOP_TRAIT (int8_t, int8_t, int8_t); |
| 53 OCTAVE_INT_BINOP_TRAIT (int8_t, int16_t, int8_t); | |
| 54 OCTAVE_INT_BINOP_TRAIT (int8_t, int32_t, int8_t); | |
| 55 OCTAVE_INT_BINOP_TRAIT (int8_t, int64_t, int8_t); | |
| 56 OCTAVE_INT_BINOP_TRAIT (int8_t, uint8_t, int8_t); | |
| 57 OCTAVE_INT_BINOP_TRAIT (int8_t, uint16_t, int8_t); | |
| 58 OCTAVE_INT_BINOP_TRAIT (int8_t, uint32_t, int8_t); | |
| 59 OCTAVE_INT_BINOP_TRAIT (int8_t, uint64_t, int8_t); | |
| 4902 | 60 |
| 5828 | 61 OCTAVE_INT_BINOP_TRAIT (int16_t, int8_t, int16_t); |
| 62 OCTAVE_INT_BINOP_TRAIT (int16_t, int16_t, int16_t); | |
| 63 OCTAVE_INT_BINOP_TRAIT (int16_t, int32_t, int16_t); | |
| 64 OCTAVE_INT_BINOP_TRAIT (int16_t, int64_t, int16_t); | |
| 65 OCTAVE_INT_BINOP_TRAIT (int16_t, uint8_t, int16_t); | |
| 66 OCTAVE_INT_BINOP_TRAIT (int16_t, uint16_t, int16_t); | |
| 67 OCTAVE_INT_BINOP_TRAIT (int16_t, uint32_t, int16_t); | |
| 68 OCTAVE_INT_BINOP_TRAIT (int16_t, uint64_t, int16_t); | |
| 4902 | 69 |
| 5828 | 70 OCTAVE_INT_BINOP_TRAIT (int32_t, int8_t, int32_t); |
| 71 OCTAVE_INT_BINOP_TRAIT (int32_t, int16_t, int32_t); | |
| 72 OCTAVE_INT_BINOP_TRAIT (int32_t, int32_t, int32_t); | |
| 73 OCTAVE_INT_BINOP_TRAIT (int32_t, int64_t, int32_t); | |
| 74 OCTAVE_INT_BINOP_TRAIT (int32_t, uint8_t, int32_t); | |
| 75 OCTAVE_INT_BINOP_TRAIT (int32_t, uint16_t, int32_t); | |
| 76 OCTAVE_INT_BINOP_TRAIT (int32_t, uint32_t, int32_t); | |
| 77 OCTAVE_INT_BINOP_TRAIT (int32_t, uint64_t, int32_t); | |
| 4902 | 78 |
| 5828 | 79 OCTAVE_INT_BINOP_TRAIT (int64_t, int8_t, int64_t); |
| 80 OCTAVE_INT_BINOP_TRAIT (int64_t, int16_t, int64_t); | |
| 81 OCTAVE_INT_BINOP_TRAIT (int64_t, int32_t, int64_t); | |
| 82 OCTAVE_INT_BINOP_TRAIT (int64_t, int64_t, int64_t); | |
| 83 OCTAVE_INT_BINOP_TRAIT (int64_t, uint8_t, int64_t); | |
| 84 OCTAVE_INT_BINOP_TRAIT (int64_t, uint16_t, int64_t); | |
| 85 OCTAVE_INT_BINOP_TRAIT (int64_t, uint32_t, int64_t); | |
| 86 OCTAVE_INT_BINOP_TRAIT (int64_t, uint64_t, int64_t); | |
| 4902 | 87 |
| 5828 | 88 OCTAVE_INT_BINOP_TRAIT (uint8_t, int8_t, int8_t); |
| 89 OCTAVE_INT_BINOP_TRAIT (uint8_t, int16_t, int8_t); | |
| 90 OCTAVE_INT_BINOP_TRAIT (uint8_t, int32_t, int8_t); | |
| 91 OCTAVE_INT_BINOP_TRAIT (uint8_t, int64_t, int8_t); | |
| 92 OCTAVE_INT_BINOP_TRAIT (uint8_t, uint8_t, uint8_t); | |
| 93 OCTAVE_INT_BINOP_TRAIT (uint8_t, uint16_t, uint8_t); | |
| 94 OCTAVE_INT_BINOP_TRAIT (uint8_t, uint32_t, uint8_t); | |
| 95 OCTAVE_INT_BINOP_TRAIT (uint8_t, uint64_t, uint8_t); | |
| 4902 | 96 |
| 5828 | 97 OCTAVE_INT_BINOP_TRAIT (uint16_t, int8_t, int16_t); |
| 98 OCTAVE_INT_BINOP_TRAIT (uint16_t, int16_t, int16_t); | |
| 99 OCTAVE_INT_BINOP_TRAIT (uint16_t, int32_t, int16_t); | |
| 100 OCTAVE_INT_BINOP_TRAIT (uint16_t, int64_t, int16_t); | |
| 101 OCTAVE_INT_BINOP_TRAIT (uint16_t, uint8_t, uint16_t); | |
| 102 OCTAVE_INT_BINOP_TRAIT (uint16_t, uint16_t, uint16_t); | |
| 103 OCTAVE_INT_BINOP_TRAIT (uint16_t, uint32_t, uint16_t); | |
| 104 OCTAVE_INT_BINOP_TRAIT (uint16_t, uint64_t, uint16_t); | |
| 4902 | 105 |
| 5828 | 106 OCTAVE_INT_BINOP_TRAIT (uint32_t, int8_t, int32_t); |
| 107 OCTAVE_INT_BINOP_TRAIT (uint32_t, int16_t, int32_t); | |
| 108 OCTAVE_INT_BINOP_TRAIT (uint32_t, int32_t, int32_t); | |
| 109 OCTAVE_INT_BINOP_TRAIT (uint32_t, int64_t, int32_t); | |
| 110 OCTAVE_INT_BINOP_TRAIT (uint32_t, uint8_t, uint32_t); | |
| 111 OCTAVE_INT_BINOP_TRAIT (uint32_t, uint16_t, uint32_t); | |
| 112 OCTAVE_INT_BINOP_TRAIT (uint32_t, uint32_t, uint32_t); | |
| 113 OCTAVE_INT_BINOP_TRAIT (uint32_t, uint64_t, uint32_t); | |
| 4902 | 114 |
| 5828 | 115 OCTAVE_INT_BINOP_TRAIT (uint64_t, int8_t, int64_t); |
| 116 OCTAVE_INT_BINOP_TRAIT (uint64_t, int16_t, int64_t); | |
| 117 OCTAVE_INT_BINOP_TRAIT (uint64_t, int32_t, int64_t); | |
| 118 OCTAVE_INT_BINOP_TRAIT (uint64_t, int64_t, int64_t); | |
| 119 OCTAVE_INT_BINOP_TRAIT (uint64_t, uint8_t, uint64_t); | |
| 120 OCTAVE_INT_BINOP_TRAIT (uint64_t, uint16_t, uint64_t); | |
| 121 OCTAVE_INT_BINOP_TRAIT (uint64_t, uint32_t, uint64_t); | |
| 122 OCTAVE_INT_BINOP_TRAIT (uint64_t, uint64_t, uint64_t); | |
| 4902 | 123 |
| 124 template <class T1, class T2> | |
| 125 inline T2 | |
| 126 octave_int_fit_to_range (const T1& x, const T2& mn, const T2& mx) | |
| 127 { | |
| 4963 | 128 return (x > mx ? mx : (x < mn ? mn : T2 (x))); |
| 4902 | 129 } |
| 130 | |
| 4943 | 131 // If X is unsigned and the new type is signed, then we only have to |
| 132 // check the upper limit, but we should cast the maximum value of the | |
| 133 // new type to an unsigned type before performing the comparison. | |
| 134 // This should always be OK because the maximum value should always be | |
| 135 // positive. | |
| 136 | |
| 5072 | 137 #define OCTAVE_US_S_FTR(T1, T2, TC) \ |
| 4943 | 138 template <> \ |
| 139 inline T2 \ | |
| 140 octave_int_fit_to_range<T1, T2> (const T1& x, const T2&, const T2& mx) \ | |
| 141 { \ | |
| 142 return x > static_cast<TC> (mx) ? mx : x; \ | |
| 143 } | |
| 144 | |
| 5072 | 145 #define OCTAVE_US_S_FTR_FCNS(T) \ |
| 146 OCTAVE_US_S_FTR (T, char, unsigned char) \ | |
| 147 OCTAVE_US_S_FTR (T, signed char, unsigned char) \ | |
| 148 OCTAVE_US_S_FTR (T, short, unsigned short) \ | |
| 149 OCTAVE_US_S_FTR (T, int, unsigned int) \ | |
| 150 OCTAVE_US_S_FTR (T, long, unsigned long) \ | |
| 151 OCTAVE_US_S_FTR (T, long long, unsigned long long) | |
| 4943 | 152 |
| 5072 | 153 OCTAVE_US_S_FTR_FCNS (unsigned char) |
| 154 OCTAVE_US_S_FTR_FCNS (unsigned short) | |
| 155 OCTAVE_US_S_FTR_FCNS (unsigned int) | |
| 156 OCTAVE_US_S_FTR_FCNS (unsigned long) | |
| 157 OCTAVE_US_S_FTR_FCNS (unsigned long long) | |
| 4943 | 158 |
| 159 // If X is signed and the new type is unsigned, then we only have to | |
| 160 // check the lower limit (which will always be 0 for an unsigned | |
| 161 // type). The upper limit will be enforced correctly by converting to | |
| 162 // the new type, even if the type of X is wider than the new type. | |
| 163 | |
| 5072 | 164 #define OCTAVE_S_US_FTR(T1, T2) \ |
| 4943 | 165 template <> \ |
| 166 inline T2 \ | |
| 167 octave_int_fit_to_range<T1, T2> (const T1& x, const T2&, const T2&) \ | |
| 168 { \ | |
| 5420 | 169 return x <= 0 ? 0 : x; \ |
| 4943 | 170 } |
| 171 | |
| 5072 | 172 #define OCTAVE_S_US_FTR_FCNS(T) \ |
| 173 OCTAVE_S_US_FTR (T, unsigned char) \ | |
| 174 OCTAVE_S_US_FTR (T, unsigned short) \ | |
| 175 OCTAVE_S_US_FTR (T, unsigned int) \ | |
| 176 OCTAVE_S_US_FTR (T, unsigned long) \ | |
| 177 OCTAVE_S_US_FTR (T, unsigned long long) | |
| 4943 | 178 |
| 5072 | 179 OCTAVE_S_US_FTR_FCNS (char) |
| 180 OCTAVE_S_US_FTR_FCNS (signed char) | |
| 181 OCTAVE_S_US_FTR_FCNS (short) | |
| 182 OCTAVE_S_US_FTR_FCNS (int) | |
| 183 OCTAVE_S_US_FTR_FCNS (long) | |
| 184 OCTAVE_S_US_FTR_FCNS (long long) | |
| 4943 | 185 |
| 4902 | 186 #define OCTAVE_INT_FIT_TO_RANGE(r, T) \ |
| 4943 | 187 octave_int_fit_to_range (r, \ |
| 188 std::numeric_limits<T>::min (), \ | |
| 189 std::numeric_limits<T>::max ()) | |
| 4902 | 190 |
| 191 #define OCTAVE_INT_MIN_VAL2(T1, T2) \ | |
| 192 std::numeric_limits<typename octave_int_binop_traits<T1, T2>::TR>::min () | |
| 193 | |
| 194 #define OCTAVE_INT_MAX_VAL2(T1, T2) \ | |
| 195 std::numeric_limits<typename octave_int_binop_traits<T1, T2>::TR>::max () | |
| 196 | |
| 197 #define OCTAVE_INT_FIT_TO_RANGE2(r, T1, T2) \ | |
| 198 octave_int_fit_to_range (r, \ | |
| 199 OCTAVE_INT_MIN_VAL2 (T1, T2), \ | |
| 200 OCTAVE_INT_MAX_VAL2 (T1, T2)) | |
| 201 | |
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202 // We have all the machinery below (octave_int_helper) to avoid a few |
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203 // warnings from GCC about comparisons always false due to limited |
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204 // range of data types. Ugh. The cure may be worse than the disease. |
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205 |
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206 // FIXME -- it would be nice to nest the helper class inside the |
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207 // octave_int class, but I don't see the magic for that at the moment. |
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208 |
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209 template <class T> class octave_int; |
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210 |
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211 template <class T, bool is_signed> |
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212 class octave_int_helper |
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213 { |
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214 public: |
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215 static octave_int<T> abs (const T& x); |
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216 |
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217 static octave_int<T> signum (const T& x); |
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218 |
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219 template <class T2> static void rshift_eq (T& ival, const T2& x); |
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220 }; |
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221 |
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222 template <class T> |
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223 class octave_int_helper<T, false> |
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224 { |
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225 public: |
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226 static octave_int<T> |
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227 abs (const T& x) { return x; } |
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228 |
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229 static octave_int<T> |
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230 signum (const T& x) { return x > 0 ? 1 : 0; } |
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231 |
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232 template <class T2> |
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233 static void |
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234 rshift_eq (T& ival, const T2& x) { ival = ival >> x; } |
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235 }; |
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236 |
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237 template <class T> |
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238 class octave_int_helper<T, true> |
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239 { |
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240 public: |
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241 static octave_int<T> |
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242 abs (const T& x) { return x < 0 ? -x : x; } |
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243 |
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244 static octave_int<T> |
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245 signum (const T& x) { return x < 0 ? -1 : (x > 0 ? 1 : 0); } |
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246 |
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247 template <class T2> |
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248 static void |
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249 rshift_eq (T& ival, const T2& x) |
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250 { |
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251 if (ival < 0) |
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252 ival = - (((-ival) >> x) & std::numeric_limits<T>::max()); |
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253 else |
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254 ival = ival >> x; |
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255 } |
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256 }; |
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257 |
| 4902 | 258 template <class T> |
| 259 class | |
| 260 octave_int | |
| 261 { | |
| 262 public: | |
| 263 | |
| 4943 | 264 typedef T val_type; |
| 265 | |
| 4902 | 266 octave_int (void) : ival () { } |
| 267 | |
| 268 template <class U> | |
| 269 octave_int (U i) : ival (OCTAVE_INT_FIT_TO_RANGE (i, T)) { } | |
| 270 | |
| 6402 | 271 octave_int (double d) : ival (OCTAVE_INT_FIT_TO_RANGE (xround (d), T)) { } |
| 272 | |
| 4902 | 273 octave_int (bool b) : ival (b) { } |
| 274 | |
| 275 template <class U> | |
| 276 octave_int (const octave_int<U>& i) | |
| 277 : ival (OCTAVE_INT_FIT_TO_RANGE (i.value (), T)) { } | |
| 278 | |
| 279 octave_int (const octave_int<T>& i) : ival (i.ival) { } | |
| 280 | |
| 281 octave_int& operator = (const octave_int<T>& i) | |
| 282 { | |
| 283 ival = i.ival; | |
| 284 return *this; | |
| 285 } | |
| 286 | |
| 287 ~octave_int (void) { } | |
| 288 | |
| 289 T value (void) const { return ival; } | |
| 290 | |
| 4949 | 291 const unsigned char * iptr (void) const |
| 292 { return reinterpret_cast<const unsigned char *> (& ival); } | |
| 293 | |
| 4902 | 294 bool operator ! (void) const { return ! ival; } |
| 295 | |
| 4906 | 296 octave_int<T> operator + (void) const { return *this; } |
| 4902 | 297 |
| 4906 | 298 octave_int<T> operator - (void) const |
| 4902 | 299 { |
| 4953 | 300 // Can't just return -ival because signed types are not |
| 301 // symmetric, which causes things like -intmin("int32") to be the | |
| 302 // same as intmin("int32") instead of intmax("int32") (which is | |
| 303 // what we should get with saturation semantics). | |
| 304 | |
| 305 return std::numeric_limits<T>::is_signed ? | |
| 306 OCTAVE_INT_FIT_TO_RANGE (- static_cast<double> (ival), T) : 0; | |
| 4902 | 307 } |
| 308 | |
| 7198 | 309 bool bool_value (void) const { return static_cast<bool> (value ()); } |
| 310 | |
| 311 char char_value (void) const { return static_cast<char> (value ()); } | |
| 312 | |
| 313 double double_value (void) const { return static_cast<double> (value ()); } | |
| 314 | |
| 315 float float_value (void) const { return static_cast<float> (value ()); } | |
| 316 | |
| 7177 | 317 operator T (void) const { return value (); } |
| 318 | |
| 7198 | 319 // char and bool operators intentionally omitted. |
| 5533 | 320 |
| 7198 | 321 operator double (void) const { return double_value (); } |
| 4902 | 322 |
| 7198 | 323 operator float (void) const { return float_value (); } |
| 5030 | 324 |
| 4902 | 325 octave_int<T>& operator += (const octave_int<T>& x) |
| 326 { | |
| 327 double t = static_cast<double> (value ()); | |
| 328 double tx = static_cast<double> (x.value ()); | |
| 329 ival = OCTAVE_INT_FIT_TO_RANGE (t + tx, T); | |
| 330 return *this; | |
| 331 } | |
| 332 | |
| 333 octave_int<T>& operator -= (const octave_int<T>& x) | |
| 334 { | |
| 335 double t = static_cast<double> (value ()); | |
| 336 double tx = static_cast<double> (x.value ()); | |
| 337 ival = OCTAVE_INT_FIT_TO_RANGE (t - tx, T); | |
| 338 return *this; | |
| 339 } | |
| 340 | |
| 4952 | 341 octave_int<T>& operator *= (const octave_int<T>& x) |
| 342 { | |
| 343 double t = static_cast<double> (value ()); | |
| 344 double tx = static_cast<double> (x.value ()); | |
| 345 ival = OCTAVE_INT_FIT_TO_RANGE (t * tx, T); | |
| 346 return *this; | |
| 347 } | |
| 348 | |
| 349 octave_int<T>& operator /= (const octave_int<T>& x) | |
| 350 { | |
| 351 double t = static_cast<double> (value ()); | |
| 352 double tx = static_cast<double> (x.value ()); | |
| 4968 | 353 double r = (t == 0 && tx == 0) ? 0 : xround (t / tx); |
| 4953 | 354 ival = OCTAVE_INT_FIT_TO_RANGE (r, T); |
| 4952 | 355 return *this; |
| 356 } | |
| 357 | |
| 358 template <class T2> | |
| 359 octave_int<T>& operator <<= (const T2& x) | |
| 360 { | |
| 6764 | 361 ival = ival << x; |
| 4952 | 362 return *this; |
| 363 } | |
| 364 | |
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365 // Use helper functions in the operator >>=, abs, and signum |
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366 // functions to avoid "comparison of unsigned expression < 0 is |
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367 // always false" warnings from GCC when instantiating these funtions |
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368 // for unsigned types. |
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369 |
| 4952 | 370 template <class T2> |
| 371 octave_int<T>& operator >>= (const T2& x) | |
| 372 { | |
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373 octave_int_helper<T, std::numeric_limits<T>::is_signed>::rshift_eq (ival, x); |
| 4952 | 374 return *this; |
| 375 } | |
| 376 | |
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377 octave_int<T> abs (void) const |
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378 { |
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379 return octave_int_helper<T, std::numeric_limits<T>::is_signed>::abs (value ()); |
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380 } |
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381 |
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382 octave_int<T> signum (void) const |
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383 { |
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384 return octave_int_helper<T, std::numeric_limits<T>::is_signed>::signum (value ()); |
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385 } |
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386 |
| 4906 | 387 octave_int<T> min (void) const { return std::numeric_limits<T>::min (); } |
| 388 octave_int<T> max (void) const { return std::numeric_limits<T>::max (); } | |
| 389 | |
| 4919 | 390 static int nbits (void) { return sizeof (T) * CHAR_BIT; } |
| 4909 | 391 |
| 4949 | 392 static int byte_size (void) { return sizeof(T); } |
| 393 | |
| 5900 | 394 // Unsafe. This function exists to support the MEX interface. |
| 395 // You should not use it anywhere else. | |
| 396 void *mex_get_data (void) const { return const_cast<T *> (&ival); } | |
| 397 | |
| 4902 | 398 private: |
| 399 | |
| 400 T ival; | |
| 401 }; | |
| 402 | |
| 403 template <class T> | |
| 4953 | 404 octave_int<T> |
| 405 pow (const octave_int<T>& a, const octave_int<T>& b) | |
| 4952 | 406 { |
| 4953 | 407 octave_int<T> retval; |
| 4952 | 408 |
| 4953 | 409 octave_int<T> zero = octave_int<T> (0); |
| 410 octave_int<T> one = octave_int<T> (1); | |
| 4952 | 411 |
| 412 if (b == zero) | |
| 413 retval = one; | |
| 414 else if (b < zero) | |
| 415 retval = zero; | |
| 416 else | |
| 417 { | |
| 4953 | 418 octave_int<T> a_val = a; |
| 419 octave_int<T> b_val = b; | |
| 4952 | 420 |
| 421 retval = a; | |
| 422 | |
| 423 b_val -= 1; | |
| 424 | |
| 5030 | 425 while (b_val != zero) |
| 4952 | 426 { |
| 5030 | 427 if ((b_val & one) != zero) |
| 4952 | 428 retval = retval * a_val; |
| 429 | |
| 430 b_val = b_val >> 1; | |
| 431 | |
| 432 if (b_val > zero) | |
| 433 a_val = a_val * a_val; | |
| 434 } | |
| 435 } | |
| 436 | |
| 437 return retval; | |
| 438 } | |
| 439 | |
| 440 template <class T> | |
| 4953 | 441 octave_int<T> |
| 442 pow (double a, const octave_int<T>& b) | |
| 443 { | |
| 444 double tb = static_cast<double> (b.value ()); | |
| 445 double r = pow (a, tb); | |
| 4968 | 446 r = lo_ieee_isnan (r) ? 0 : xround (r); |
| 4953 | 447 return OCTAVE_INT_FIT_TO_RANGE (r, T); |
| 448 } | |
| 449 | |
| 450 template <class T> | |
| 451 octave_int<T> | |
| 452 pow (const octave_int<T>& a, double b) | |
| 453 { | |
| 454 double ta = static_cast<double> (a.value ()); | |
| 455 double r = pow (ta, b); | |
| 4968 | 456 r = lo_ieee_isnan (r) ? 0 : xround (r); |
| 4953 | 457 return OCTAVE_INT_FIT_TO_RANGE (r, T); |
| 458 } | |
| 459 | |
| 460 template <class T> | |
| 4902 | 461 std::ostream& |
| 462 operator << (std::ostream& os, const octave_int<T>& ival) | |
| 463 { | |
| 464 os << ival.value (); | |
| 465 return os; | |
| 466 } | |
| 467 | |
| 468 template <class T> | |
| 469 std::istream& | |
| 470 operator >> (std::istream& is, octave_int<T>& ival) | |
| 471 { | |
| 472 T tmp = 0; | |
| 473 is >> tmp; | |
| 474 ival = tmp; | |
| 475 return is; | |
| 476 } | |
| 477 | |
| 5828 | 478 typedef octave_int<int8_t> octave_int8; |
| 479 typedef octave_int<int16_t> octave_int16; | |
| 480 typedef octave_int<int32_t> octave_int32; | |
| 481 typedef octave_int<int64_t> octave_int64; | |
| 4902 | 482 |
| 5828 | 483 typedef octave_int<uint8_t> octave_uint8; |
| 484 typedef octave_int<uint16_t> octave_uint16; | |
| 485 typedef octave_int<uint32_t> octave_uint32; | |
| 486 typedef octave_int<uint64_t> octave_uint64; | |
| 4902 | 487 |
| 488 #define OCTAVE_INT_BIN_OP(OP) \ | |
| 489 template <class T1, class T2> \ | |
| 490 octave_int<typename octave_int_binop_traits<T1, T2>::TR> \ | |
| 491 operator OP (const octave_int<T1>& x, const octave_int<T2>& y) \ | |
| 492 { \ | |
| 493 double tx = static_cast<double> (x.value ()); \ | |
| 494 double ty = static_cast<double> (y.value ()); \ | |
| 495 double r = tx OP ty; \ | |
| 496 return OCTAVE_INT_FIT_TO_RANGE2 (r, T1, T2); \ | |
| 4906 | 497 } |
| 4902 | 498 |
| 499 OCTAVE_INT_BIN_OP(+) | |
| 500 OCTAVE_INT_BIN_OP(-) | |
| 501 OCTAVE_INT_BIN_OP(*) | |
| 4953 | 502 |
| 503 template <class T1, class T2> | |
| 504 octave_int<typename octave_int_binop_traits<T1, T2>::TR> | |
| 505 operator / (const octave_int<T1>& x, const octave_int<T2>& y) | |
| 506 { | |
| 507 double tx = static_cast<double> (x.value ()); | |
| 508 double ty = static_cast<double> (y.value ()); | |
| 6402 | 509 double r = (tx == 0 && ty == 0) ? 0 : xround (tx / ty); |
| 4953 | 510 return OCTAVE_INT_FIT_TO_RANGE2 (r, T1, T2); |
| 511 } | |
| 512 | |
| 513 #define OCTAVE_INT_DOUBLE_BIN_OP(OP) \ | |
| 514 template <class T> \ | |
| 515 octave_int<T> \ | |
| 516 operator OP (const octave_int<T>& x, double y) \ | |
| 517 { \ | |
| 518 double tx = static_cast<double> (x.value ()); \ | |
| 4968 | 519 double r = xround (tx OP y); \ |
| 520 r = lo_ieee_isnan (r) ? 0 : xround (r); \ | |
| 4953 | 521 return OCTAVE_INT_FIT_TO_RANGE (r, T); \ |
| 522 } | |
| 523 | |
| 524 OCTAVE_INT_DOUBLE_BIN_OP(+) | |
| 525 OCTAVE_INT_DOUBLE_BIN_OP(-) | |
| 526 OCTAVE_INT_DOUBLE_BIN_OP(*) | |
| 527 OCTAVE_INT_DOUBLE_BIN_OP(/) | |
| 528 | |
| 529 #define OCTAVE_DOUBLE_INT_BIN_OP(OP) \ | |
| 530 template <class T> \ | |
| 531 octave_int<T> \ | |
| 532 operator OP (double x, const octave_int<T>& y) \ | |
| 533 { \ | |
| 534 double ty = static_cast<double> (y.value ()); \ | |
| 535 double r = x OP ty; \ | |
| 4968 | 536 r = lo_ieee_isnan (r) ? 0 : xround (r); \ |
| 4953 | 537 return OCTAVE_INT_FIT_TO_RANGE (r, T); \ |
| 538 } | |
| 539 | |
| 540 OCTAVE_DOUBLE_INT_BIN_OP(+) | |
| 541 OCTAVE_DOUBLE_INT_BIN_OP(-) | |
| 542 OCTAVE_DOUBLE_INT_BIN_OP(*) | |
| 543 OCTAVE_DOUBLE_INT_BIN_OP(/) | |
| 4902 | 544 |
| 5029 | 545 #define OCTAVE_INT_DOUBLE_CMP_OP(OP) \ |
| 546 template <class T> \ | |
| 547 bool \ | |
| 548 operator OP (const octave_int<T>& x, const double& y) \ | |
| 549 { \ | |
| 550 double tx = static_cast<double> (x.value ()); \ | |
| 5030 | 551 return tx OP y; \ |
| 5029 | 552 } |
| 553 | |
| 554 OCTAVE_INT_DOUBLE_CMP_OP (<) | |
| 555 OCTAVE_INT_DOUBLE_CMP_OP (<=) | |
| 556 OCTAVE_INT_DOUBLE_CMP_OP (>=) | |
| 557 OCTAVE_INT_DOUBLE_CMP_OP (>) | |
| 558 OCTAVE_INT_DOUBLE_CMP_OP (==) | |
| 559 OCTAVE_INT_DOUBLE_CMP_OP (!=) | |
| 560 | |
| 561 #define OCTAVE_DOUBLE_INT_CMP_OP(OP) \ | |
| 562 template <class T> \ | |
| 563 bool \ | |
| 564 operator OP (const double& x, const octave_int<T>& y) \ | |
| 565 { \ | |
| 566 double ty = static_cast<double> (y.value ()); \ | |
| 5030 | 567 return x OP ty; \ |
| 5029 | 568 } |
| 569 | |
| 570 OCTAVE_DOUBLE_INT_CMP_OP (<) | |
| 571 OCTAVE_DOUBLE_INT_CMP_OP (<=) | |
| 572 OCTAVE_DOUBLE_INT_CMP_OP (>=) | |
| 573 OCTAVE_DOUBLE_INT_CMP_OP (>) | |
| 574 OCTAVE_DOUBLE_INT_CMP_OP (==) | |
| 575 OCTAVE_DOUBLE_INT_CMP_OP (!=) | |
| 576 | |
| 4906 | 577 #define OCTAVE_INT_BITCMP_OP(OP) \ |
| 578 template <class T> \ | |
| 579 octave_int<T> \ | |
| 580 operator OP (const octave_int<T>& x, const octave_int<T>& y) \ | |
| 581 { \ | |
| 582 return x.value () OP y.value (); \ | |
| 583 } | |
| 584 | |
| 585 OCTAVE_INT_BITCMP_OP (&) | |
| 586 OCTAVE_INT_BITCMP_OP (|) | |
| 587 OCTAVE_INT_BITCMP_OP (^) | |
| 588 | |
| 4952 | 589 template <class T1, class T2> |
| 590 octave_int<T1> | |
| 591 operator << (const octave_int<T1>& x, const T2& y) | |
| 592 { | |
| 5030 | 593 octave_int<T1> retval = x; |
| 4952 | 594 return retval <<= y; |
| 595 } | |
| 4906 | 596 |
| 4952 | 597 template <class T1, class T2> |
| 598 octave_int<T1> | |
| 599 operator >> (const octave_int<T1>& x, const T2& y) | |
| 600 { | |
| 5030 | 601 octave_int<T1> retval = x; |
| 4952 | 602 return retval >>= y; |
| 603 } | |
| 4906 | 604 |
| 4909 | 605 template <class T> |
| 606 octave_int<T> | |
| 4920 | 607 bitshift (const octave_int<T>& a, int n, |
| 608 const octave_int<T>& mask = std::numeric_limits<T>::max ()) | |
| 4909 | 609 { |
| 610 if (n > 0) | |
| 4952 | 611 return (a << n) & mask; |
| 4909 | 612 else if (n < 0) |
| 4952 | 613 return (a >> -n) & mask; |
| 4909 | 614 else |
| 615 return a; | |
| 616 } | |
| 617 | |
| 4902 | 618 #define OCTAVE_INT_CMP_OP(OP) \ |
| 619 template <class T1, class T2> \ | |
| 620 bool \ | |
| 621 operator OP (const octave_int<T1>& x, const octave_int<T2>& y) \ | |
| 622 { \ | |
| 5072 | 623 return x.value () OP y.value (); \ |
| 4906 | 624 } |
| 4902 | 625 |
| 626 OCTAVE_INT_CMP_OP (<) | |
| 627 OCTAVE_INT_CMP_OP (<=) | |
| 628 OCTAVE_INT_CMP_OP (>=) | |
| 629 OCTAVE_INT_CMP_OP (>) | |
| 630 OCTAVE_INT_CMP_OP (==) | |
| 631 OCTAVE_INT_CMP_OP (!=) | |
| 632 | |
| 5072 | 633 // The following apply if the unsigned type is at least as wide as the |
| 634 // signed type (then we can cast postive signed values to the unsigned | |
| 635 // type and compare). | |
| 636 | |
| 637 #define OCTAVE_US_TYPE1_CMP_OP_DECL(OP, LTZ_VAL, UT, ST) \ | |
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638 template <> \ |
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639 bool \ |
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640 OCTAVE_API operator OP (const octave_int<UT>& lhs, const octave_int<ST>& rhs); |
| 5072 | 641 |
| 642 #define OCTAVE_US_TYPE1_CMP_OP_DECLS(UT, ST) \ | |
| 643 OCTAVE_US_TYPE1_CMP_OP_DECL (<, false, UT, ST) \ | |
| 644 OCTAVE_US_TYPE1_CMP_OP_DECL (<=, false, UT, ST) \ | |
| 645 OCTAVE_US_TYPE1_CMP_OP_DECL (>=, true, UT, ST) \ | |
| 646 OCTAVE_US_TYPE1_CMP_OP_DECL (>, true, UT, ST) \ | |
| 647 OCTAVE_US_TYPE1_CMP_OP_DECL (==, false, UT, ST) \ | |
| 648 OCTAVE_US_TYPE1_CMP_OP_DECL (!=, true, UT, ST) | |
| 649 | |
| 650 #define OCTAVE_SU_TYPE1_CMP_OP_DECL(OP, LTZ_VAL, ST, UT) \ | |
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651 template <> \ |
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652 bool \ |
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653 OCTAVE_API operator OP (const octave_int<ST>& lhs, const octave_int<UT>& rhs); |
| 5072 | 654 |
| 655 #define OCTAVE_SU_TYPE1_CMP_OP_DECLS(ST, UT) \ | |
| 656 OCTAVE_SU_TYPE1_CMP_OP_DECL (<, true, ST, UT) \ | |
| 657 OCTAVE_SU_TYPE1_CMP_OP_DECL (<=, true, ST, UT) \ | |
| 658 OCTAVE_SU_TYPE1_CMP_OP_DECL (>=, false, ST, UT) \ | |
| 659 OCTAVE_SU_TYPE1_CMP_OP_DECL (>, false, ST, UT) \ | |
| 660 OCTAVE_SU_TYPE1_CMP_OP_DECL (==, false, ST, UT) \ | |
| 661 OCTAVE_SU_TYPE1_CMP_OP_DECL (!=, true, ST, UT) | |
| 662 | |
| 663 #define OCTAVE_TYPE1_CMP_OP_DECLS(UT, ST) \ | |
| 664 OCTAVE_US_TYPE1_CMP_OP_DECLS (UT, ST) \ | |
| 665 OCTAVE_SU_TYPE1_CMP_OP_DECLS (ST, UT) | |
| 666 | |
| 5828 | 667 OCTAVE_TYPE1_CMP_OP_DECLS (uint32_t, int8_t) |
| 668 OCTAVE_TYPE1_CMP_OP_DECLS (uint32_t, int16_t) | |
| 669 OCTAVE_TYPE1_CMP_OP_DECLS (uint32_t, int32_t) | |
| 5072 | 670 |
| 5828 | 671 OCTAVE_TYPE1_CMP_OP_DECLS (uint64_t, int8_t) |
| 672 OCTAVE_TYPE1_CMP_OP_DECLS (uint64_t, int16_t) | |
| 673 OCTAVE_TYPE1_CMP_OP_DECLS (uint64_t, int32_t) | |
| 674 OCTAVE_TYPE1_CMP_OP_DECLS (uint64_t, int64_t) | |
| 5072 | 675 |
| 676 // The following apply if the signed type is wider than the unsigned | |
| 677 // type (then we can cast unsigned values to the signed type and | |
| 678 // compare if the signed value is positive). | |
| 679 | |
| 680 #define OCTAVE_US_TYPE2_CMP_OP_DECL(OP, LTZ_VAL, UT, ST) \ | |
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681 template <> \ |
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avoid some GCC warnings for unsigned comparisons
John W. Eaton <jwe@octave.org>
parents:
7503
diff
changeset
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682 bool \ |
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6f10bbb2854a
avoid some GCC warnings for unsigned comparisons
John W. Eaton <jwe@octave.org>
parents:
7503
diff
changeset
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683 OCTAVE_API operator OP (const octave_int<UT>& lhs, const octave_int<ST>& rhs); |
| 5072 | 684 |
| 685 #define OCTAVE_US_TYPE2_CMP_OP_DECLS(ST, UT) \ | |
| 686 OCTAVE_US_TYPE2_CMP_OP_DECL (<, false, ST, UT) \ | |
| 687 OCTAVE_US_TYPE2_CMP_OP_DECL (<=, false, ST, UT) \ | |
| 688 OCTAVE_US_TYPE2_CMP_OP_DECL (>=, true, ST, UT) \ | |
| 689 OCTAVE_US_TYPE2_CMP_OP_DECL (>, true, ST, UT) \ | |
| 690 OCTAVE_US_TYPE2_CMP_OP_DECL (==, false, ST, UT) \ | |
| 691 OCTAVE_US_TYPE2_CMP_OP_DECL (!=, true, ST, UT) | |
| 692 | |
| 693 #define OCTAVE_SU_TYPE2_CMP_OP_DECL(OP, LTZ_VAL, ST, UT) \ | |
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7521
6f10bbb2854a
avoid some GCC warnings for unsigned comparisons
John W. Eaton <jwe@octave.org>
parents:
7503
diff
changeset
|
694 template <> \ |
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6f10bbb2854a
avoid some GCC warnings for unsigned comparisons
John W. Eaton <jwe@octave.org>
parents:
7503
diff
changeset
|
695 bool \ |
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6f10bbb2854a
avoid some GCC warnings for unsigned comparisons
John W. Eaton <jwe@octave.org>
parents:
7503
diff
changeset
|
696 OCTAVE_API operator OP (const octave_int<ST>& lhs, const octave_int<UT>& rhs); |
| 5072 | 697 |
| 698 #define OCTAVE_SU_TYPE2_CMP_OP_DECLS(ST, UT) \ | |
| 699 OCTAVE_SU_TYPE2_CMP_OP_DECL (<, true, ST, UT) \ | |
| 700 OCTAVE_SU_TYPE2_CMP_OP_DECL (<=, true, ST, UT) \ | |
| 701 OCTAVE_SU_TYPE2_CMP_OP_DECL (>=, false, ST, UT) \ | |
| 702 OCTAVE_SU_TYPE2_CMP_OP_DECL (>, false, ST, UT) \ | |
| 703 OCTAVE_SU_TYPE2_CMP_OP_DECL (==, false, ST, UT) \ | |
| 704 OCTAVE_SU_TYPE2_CMP_OP_DECL (!=, true, ST, UT) | |
| 705 | |
| 706 #define OCTAVE_TYPE2_CMP_OP_DECLS(UT, ST) \ | |
| 707 OCTAVE_US_TYPE2_CMP_OP_DECLS (UT, ST) \ | |
| 708 OCTAVE_SU_TYPE2_CMP_OP_DECLS (ST, UT) | |
| 709 | |
| 5828 | 710 OCTAVE_TYPE2_CMP_OP_DECLS (uint32_t, int64_t) |
| 5072 | 711 |
| 4902 | 712 #undef OCTAVE_INT_BINOP_TRAIT |
| 5072 | 713 #undef OCTAVE_US_S_FTR |
| 714 #undef OCTAVE_US_S_FTR_FCNS | |
| 715 #undef OCTAVE_S_US_FTR | |
| 716 #undef OCTAVE_S_US_FTR_FCNS | |
| 4902 | 717 #undef OCTAVE_INT_FIT_TO_RANGE |
| 718 #undef OCTAVE_INT_MIN_VAL2 | |
| 719 #undef OCTAVE_INT_MAX_VAL2 | |
| 720 #undef OCTAVE_INT_FIT_TO_RANGE2 | |
| 721 #undef OCTAVE_INT_BIN_OP | |
| 5072 | 722 #undef OCTAVE_INT_DOUBLE_BIN_OP |
| 723 #undef OCTAVE_DOUBLE_INT_BIN_OP | |
| 724 #undef OCTAVE_INT_DOUBLE_CMP_OP | |
| 725 #undef OCTAVE_DOUBLE_INT_CMP_OP | |
| 726 #undef OCTAVE_INT_BITCMP_OP | |
| 4902 | 727 #undef OCTAVE_INT_CMP_OP |
| 5072 | 728 #undef OCTAVE_US_TYPE1_CMP_OP_DECL |
| 729 #undef OCTAVE_US_TYPE1_CMP_OP_DECLS | |
| 730 #undef OCTAVE_SU_TYPE1_CMP_OP_DECL | |
| 731 #undef OCTAVE_SU_TYPE1_CMP_OP_DECLS | |
| 732 #undef OCTAVE_TYPE1_CMP_OP_DECLS | |
| 733 #undef OCTAVE_US_TYPE2_CMP_OP_DECL | |
| 734 #undef OCTAVE_US_TYPE2_CMP_OP_DECLS | |
| 735 #undef OCTAVE_SU_TYPE2_CMP_OP_DECL | |
| 736 #undef OCTAVE_SU_TYPE2_CMP_OP_DECLS | |
| 5074 | 737 #undef OCTAVE_TYPE2_CMP_OP_DECLS |
| 4902 | 738 |
| 739 #endif | |
| 740 | |
| 741 /* | |
| 742 ;;; Local Variables: *** | |
| 743 ;;; mode: C++ *** | |
| 744 ;;; End: *** | |
| 745 */ |