libc/include/llvm-libc-macros/stdbit-macros.h

   1 //===-- Definition of macros to be used with stdbit functions ----------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef __LLVM_LIBC_MACROS_STDBIT_MACROS_H
  10 #define __LLVM_LIBC_MACROS_STDBIT_MACROS_H
  11
  12 #define __STDC_VERSION_STDBIT_H__ 202311L
  13 #define __STDC_ENDIAN_LITTLE__ __ORDER_LITTLE_ENDIAN__
  14 #define __STDC_ENDIAN_BIG__ __ORDER_BIG_ENDIAN__
  15 #define __STDC_ENDIAN_NATIVE__ __BYTE_ORDER__
  16
  17 // TODO(https://github.com/llvm/llvm-project/issues/80509): support _BitInt().
  18 #ifdef __cplusplus
  19 inline unsigned stdc_leading_zeros(unsigned char x) {
  20   return stdc_leading_zeros_uc(x);
  21 }
  22 inline unsigned stdc_leading_zeros(unsigned short x) {
  23   return stdc_leading_zeros_us(x);
  24 }
  25 inline unsigned stdc_leading_zeros(unsigned x) {
  26   return stdc_leading_zeros_ui(x);
  27 }
  28 inline unsigned stdc_leading_zeros(unsigned long x) {
  29   return stdc_leading_zeros_ul(x);
  30 }
  31 inline unsigned stdc_leading_zeros(unsigned long long x) {
  32   return stdc_leading_zeros_ull(x);
  33 }
  34 inline unsigned stdc_leading_ones(unsigned char x) {
  35   return stdc_leading_ones_uc(x);
  36 }
  37 inline unsigned stdc_leading_ones(unsigned short x) {
  38   return stdc_leading_ones_us(x);
  39 }
  40 inline unsigned stdc_leading_ones(unsigned x) {
  41   return stdc_leading_ones_ui(x);
  42 }
  43 inline unsigned stdc_leading_ones(unsigned long x) {
  44   return stdc_leading_ones_ul(x);
  45 }
  46 inline unsigned stdc_leading_ones(unsigned long long x) {
  47   return stdc_leading_ones_ull(x);
  48 }
  49 inline unsigned stdc_trailing_zeros(unsigned char x) {
  50   return stdc_trailing_zeros_uc(x);
  51 }
  52 inline unsigned stdc_trailing_zeros(unsigned short x) {
  53   return stdc_trailing_zeros_us(x);
  54 }
  55 inline unsigned stdc_trailing_zeros(unsigned x) {
  56   return stdc_trailing_zeros_ui(x);
  57 }
  58 inline unsigned stdc_trailing_zeros(unsigned long x) {
  59   return stdc_trailing_zeros_ul(x);
  60 }
  61 inline unsigned stdc_trailing_zeros(unsigned long long x) {
  62   return stdc_trailing_zeros_ull(x);
  63 }
  64 inline unsigned stdc_trailing_ones(unsigned char x) {
  65   return stdc_trailing_ones_uc(x);
  66 }
  67 inline unsigned stdc_trailing_ones(unsigned short x) {
  68   return stdc_trailing_ones_us(x);
  69 }
  70 inline unsigned stdc_trailing_ones(unsigned x) {
  71   return stdc_trailing_ones_ui(x);
  72 }
  73 inline unsigned stdc_trailing_ones(unsigned long x) {
  74   return stdc_trailing_ones_ul(x);
  75 }
  76 inline unsigned stdc_trailing_ones(unsigned long long x) {
  77   return stdc_trailing_ones_ull(x);
  78 }
  79 inline unsigned stdc_first_leading_zero(unsigned char x) {
  80   return stdc_first_leading_zero_uc(x);
  81 }
  82 inline unsigned stdc_first_leading_zero(unsigned short x) {
  83   return stdc_first_leading_zero_us(x);
  84 }
  85 inline unsigned stdc_first_leading_zero(unsigned x) {
  86   return stdc_first_leading_zero_ui(x);
  87 }
  88 inline unsigned stdc_first_leading_zero(unsigned long x) {
  89   return stdc_first_leading_zero_ul(x);
  90 }
  91 inline unsigned stdc_first_leading_zero(unsigned long long x) {
  92   return stdc_first_leading_zero_ull(x);
  93 }
  94 inline unsigned stdc_first_leading_one(unsigned char x) {
  95   return stdc_first_leading_one_uc(x);
  96 }
  97 inline unsigned stdc_first_leading_one(unsigned short x) {
  98   return stdc_first_leading_one_us(x);
  99 }
 100 inline unsigned stdc_first_leading_one(unsigned x) {
 101   return stdc_first_leading_one_ui(x);
 102 }
 103 inline unsigned stdc_first_leading_one(unsigned long x) {
 104   return stdc_first_leading_one_ul(x);
 105 }
 106 inline unsigned stdc_first_leading_one(unsigned long long x) {
 107   return stdc_first_leading_one_ull(x);
 108 }
 109 inline unsigned stdc_first_trailing_zero(unsigned char x) {
 110   return stdc_first_trailing_zero_uc(x);
 111 }
 112 inline unsigned stdc_first_trailing_zero(unsigned short x) {
 113   return stdc_first_trailing_zero_us(x);
 114 }
 115 inline unsigned stdc_first_trailing_zero(unsigned x) {
 116   return stdc_first_trailing_zero_ui(x);
 117 }
 118 inline unsigned stdc_first_trailing_zero(unsigned long x) {
 119   return stdc_first_trailing_zero_ul(x);
 120 }
 121 inline unsigned stdc_first_trailing_zero(unsigned long long x) {
 122   return stdc_first_trailing_zero_ull(x);
 123 }
 124 inline unsigned stdc_first_trailing_one(unsigned char x) {
 125   return stdc_first_trailing_one_uc(x);
 126 }
 127 inline unsigned stdc_first_trailing_one(unsigned short x) {
 128   return stdc_first_trailing_one_us(x);
 129 }
 130 inline unsigned stdc_first_trailing_one(unsigned x) {
 131   return stdc_first_trailing_one_ui(x);
 132 }
 133 inline unsigned stdc_first_trailing_one(unsigned long x) {
 134   return stdc_first_trailing_one_ul(x);
 135 }
 136 inline unsigned stdc_first_trailing_one(unsigned long long x) {
 137   return stdc_first_trailing_one_ull(x);
 138 }
 139 inline unsigned stdc_count_zeros(unsigned char x) {
 140   return stdc_count_zeros_uc(x);
 141 }
 142 inline unsigned stdc_count_zeros(unsigned short x) {
 143   return stdc_count_zeros_us(x);
 144 }
 145 inline unsigned stdc_count_zeros(unsigned x) { return stdc_count_zeros_ui(x); }
 146 inline unsigned stdc_count_zeros(unsigned long x) {
 147   return stdc_count_zeros_ul(x);
 148 }
 149 inline unsigned stdc_count_zeros(unsigned long long x) {
 150   return stdc_count_zeros_ull(x);
 151 }
 152 inline unsigned stdc_count_ones(unsigned char x) {
 153   return stdc_count_ones_uc(x);
 154 }
 155 inline unsigned stdc_count_ones(unsigned short x) {
 156   return stdc_count_ones_us(x);
 157 }
 158 inline unsigned stdc_count_ones(unsigned x) { return stdc_count_ones_ui(x); }
 159 inline unsigned stdc_count_ones(unsigned long x) {
 160   return stdc_count_ones_ul(x);
 161 }
 162 inline unsigned stdc_count_ones(unsigned long long x) {
 163   return stdc_count_ones_ull(x);
 164 }
 165 inline bool stdc_has_single_bit(unsigned char x) {
 166   return stdc_has_single_bit_uc(x);
 167 }
 168 inline bool stdc_has_single_bit(unsigned short x) {
 169   return stdc_has_single_bit_us(x);
 170 }
 171 inline bool stdc_has_single_bit(unsigned x) {
 172   return stdc_has_single_bit_ui(x);
 173 }
 174 inline bool stdc_has_single_bit(unsigned long x) {
 175   return stdc_has_single_bit_ul(x);
 176 }
 177 inline bool stdc_has_single_bit(unsigned long long x) {
 178   return stdc_has_single_bit_ull(x);
 179 }
 180 inline unsigned stdc_bit_width(unsigned char x) { return stdc_bit_width_uc(x); }
 181 inline unsigned stdc_bit_width(unsigned short x) {
 182   return stdc_bit_width_us(x);
 183 }
 184 inline unsigned stdc_bit_width(unsigned x) { return stdc_bit_width_ui(x); }
 185 inline unsigned stdc_bit_width(unsigned long x) { return stdc_bit_width_ul(x); }
 186 inline unsigned stdc_bit_width(unsigned long long x) {
 187   return stdc_bit_width_ull(x);
 188 }
 189 inline unsigned char stdc_bit_floor(unsigned char x) {
 190   return stdc_bit_floor_uc(x);
 191 }
 192 inline unsigned short stdc_bit_floor(unsigned short x) {
 193   return stdc_bit_floor_us(x);
 194 }
 195 inline unsigned stdc_bit_floor(unsigned x) { return stdc_bit_floor_ui(x); }
 196 inline unsigned long stdc_bit_floor(unsigned long x) {
 197   return stdc_bit_floor_ul(x);
 198 }
 199 inline unsigned long long stdc_bit_floor(unsigned long long x) {
 200   return stdc_bit_floor_ull(x);
 201 }
 202 inline unsigned char stdc_bit_ceil(unsigned char x) {
 203   return stdc_bit_ceil_uc(x);
 204 }
 205 inline unsigned short stdc_bit_ceil(unsigned short x) {
 206   return stdc_bit_ceil_us(x);
 207 }
 208 inline unsigned stdc_bit_ceil(unsigned x) { return stdc_bit_ceil_ui(x); }
 209 inline unsigned long stdc_bit_ceil(unsigned long x) {
 210   return stdc_bit_ceil_ul(x);
 211 }
 212 inline unsigned long long stdc_bit_ceil(unsigned long long x) {
 213   return stdc_bit_ceil_ull(x);
 214 }
 215 #else
 216 #define stdc_leading_zeros(x)                                                  \
 217   _Generic((x),                                                                \
 218       unsigned char: stdc_leading_zeros_uc,                                    \
 219       unsigned short: stdc_leading_zeros_us,                                   \
 220       unsigned: stdc_leading_zeros_ui,                                         \
 221       unsigned long: stdc_leading_zeros_ul,                                    \
 222       unsigned long long: stdc_leading_zeros_ull)(x)
 223 #define stdc_leading_ones(x)                                                   \
 224   _Generic((x),                                                                \
 225       unsigned char: stdc_leading_ones_uc,                                     \
 226       unsigned short: stdc_leading_ones_us,                                    \
 227       unsigned: stdc_leading_ones_ui,                                          \
 228       unsigned long: stdc_leading_ones_ul,                                     \
 229       unsigned long long: stdc_leading_ones_ull)(x)
 230 #define stdc_trailing_zeros(x)                                                 \
 231   _Generic((x),                                                                \
 232       unsigned char: stdc_trailing_zeros_uc,                                   \
 233       unsigned short: stdc_trailing_zeros_us,                                  \
 234       unsigned: stdc_trailing_zeros_ui,                                        \
 235       unsigned long: stdc_trailing_zeros_ul,                                   \
 236       unsigned long long: stdc_trailing_zeros_ull)(x)
 237 #define stdc_trailing_ones(x)                                                  \
 238   _Generic((x),                                                                \
 239       unsigned char: stdc_trailing_ones_uc,                                    \
 240       unsigned short: stdc_trailing_ones_us,                                   \
 241       unsigned: stdc_trailing_ones_ui,                                         \
 242       unsigned long: stdc_trailing_ones_ul,                                    \
 243       unsigned long long: stdc_trailing_ones_ull)(x)
 244 #define stdc_first_leading_zero(x)                                             \
 245   _Generic((x),                                                                \
 246       unsigned char: stdc_first_leading_zero_uc,                               \
 247       unsigned short: stdc_first_leading_zero_us,                              \
 248       unsigned: stdc_first_leading_zero_ui,                                    \
 249       unsigned long: stdc_first_leading_zero_ul,                               \
 250       unsigned long long: stdc_first_leading_zero_ull)(x)
 251 #define stdc_first_leading_one(x)                                              \
 252   _Generic((x),                                                                \
 253       unsigned char: stdc_first_leading_one_uc,                                \
 254       unsigned short: stdc_first_leading_one_us,                               \
 255       unsigned: stdc_first_leading_one_ui,                                     \
 256       unsigned long: stdc_first_leading_one_ul,                                \
 257       unsigned long long: stdc_first_leading_one_ull)(x)
 258 #define stdc_first_trailing_zero(x)                                            \
 259   _Generic((x),                                                                \
 260       unsigned char: stdc_first_trailing_zero_uc,                              \
 261       unsigned short: stdc_first_trailing_zero_us,                             \
 262       unsigned: stdc_first_trailing_zero_ui,                                   \
 263       unsigned long: stdc_first_trailing_zero_ul,                              \
 264       unsigned long long: stdc_first_trailing_zero_ull)(x)
 265 #define stdc_first_trailing_one(x)                                             \
 266   _Generic((x),                                                                \
 267       unsigned char: stdc_first_trailing_one_uc,                               \
 268       unsigned short: stdc_first_trailing_one_us,                              \
 269       unsigned: stdc_first_trailing_one_ui,                                    \
 270       unsigned long: stdc_first_trailing_one_ul,                               \
 271       unsigned long long: stdc_first_trailing_one_ull)(x)
 272 #define stdc_count_zeros(x)                                                    \
 273   _Generic((x),                                                                \
 274       unsigned char: stdc_count_zeros_uc,                                      \
 275       unsigned short: stdc_count_zeros_us,                                     \
 276       unsigned: stdc_count_zeros_ui,                                           \
 277       unsigned long: stdc_count_zeros_ul,                                      \
 278       unsigned long long: stdc_count_zeros_ull)(x)
 279 #define stdc_count_ones(x)                                                     \
 280   _Generic((x),                                                                \
 281       unsigned char: stdc_count_ones_uc,                                       \
 282       unsigned short: stdc_count_ones_us,                                      \
 283       unsigned: stdc_count_ones_ui,                                            \
 284       unsigned long: stdc_count_ones_ul,                                       \
 285       unsigned long long: stdc_count_ones_ull)(x)
 286 #define stdc_has_single_bit(x)                                                 \
 287   _Generic((x),                                                                \
 288       unsigned char: stdc_has_single_bit_uc,                                   \
 289       unsigned short: stdc_has_single_bit_us,                                  \
 290       unsigned: stdc_has_single_bit_ui,                                        \
 291       unsigned long: stdc_has_single_bit_ul,                                   \
 292       unsigned long long: stdc_has_single_bit_ull)(x)
 293 #define stdc_bit_width(x)                                                      \
 294   _Generic((x),                                                                \
 295       unsigned char: stdc_bit_width_uc,                                        \
 296       unsigned short: stdc_bit_width_us,                                       \
 297       unsigned: stdc_bit_width_ui,                                             \
 298       unsigned long: stdc_bit_width_ul,                                        \
 299       unsigned long long: stdc_bit_width_ull)(x)
 300 #define stdc_bit_floor(x)                                                      \
 301   _Generic((x),                                                                \
 302       unsigned char: stdc_bit_floor_uc,                                        \
 303       unsigned short: stdc_bit_floor_us,                                       \
 304       unsigned: stdc_bit_floor_ui,                                             \
 305       unsigned long: stdc_bit_floor_ul,                                        \
 306       unsigned long long: stdc_bit_floor_ull)(x)
 307 #define stdc_bit_ceil(x)                                                       \
 308   _Generic((x),                                                                \
 309       unsigned char: stdc_bit_ceil_uc,                                         \
 310       unsigned short: stdc_bit_ceil_us,                                        \
 311       unsigned: stdc_bit_ceil_ui,                                              \
 312       unsigned long: stdc_bit_ceil_ul,                                         \
 313       unsigned long long: stdc_bit_ceil_ull)(x)
 314 #endif // __cplusplus
 315
 316 #endif // __LLVM_LIBC_MACROS_STDBIT_MACROS_H