Overview
| Comment: | Add methods for byte swapping floats and doubles. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
2be6a03c5afd2c772829c5741f6bc864 |
| User & Date: | js on 2011-06-05 18:07:35 |
| Other Links: | manifest | tags |
Context
|
2011-06-05
| ||
| 18:13 | Always hash floats and doubles in big endian. check-in: 4560e88c45 user: js tags: trunk | |
| 18:07 | Add methods for byte swapping floats and doubles. check-in: 2be6a03c5a user: js tags: trunk | |
| 17:50 | Check floating point endianess. check-in: 0348b9b3b3 user: js tags: trunk | |
Changes
Modified src/macros.h from [93351baa39] to [793bb737f0].
| ︙ | |||
202 203 204 205 206 207 208 209 210 211 212 213 214 215 | 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 | + + + + + + + + + + + + + + |
# define of_bswap64(i) \
(__builtin_constant_p(i) ? of_bswap64_const(i) : of_bswap64_nonconst(i))
#else
# define of_bswap16(i) of_bswap16_const(i)
# define of_bswap32(i) of_bswap32_const(i)
# define of_bswap64(i) of_bswap64_const(i)
#endif
static OF_INLINE float OF_CONST_FUNC
of_bswap_float(float f)
{
uint32_t tmp = of_bswap32(*(uint32_t*)&f);
return *(float*)&tmp;
}
static OF_INLINE double OF_CONST_FUNC
of_bswap_double(double d)
{
uint64_t tmp = of_bswap64(*(uint64_t*)&d);
return *(double*)&tmp;
}
static OF_INLINE void
of_bswap32_vec(uint32_t *buffer, size_t length)
{
while (length--) {
*buffer = of_bswap32(*buffer);
buffer++;
|
| ︙ | |||
229 230 231 232 233 234 235 236 237 238 239 240 241 242 | 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 | + + + + + + + + + + + + | # define of_bswap32_if_be(i) (i) # define of_bswap64_if_be(i) (i) # define of_bswap16_if_le(i) of_bswap16(i) # define of_bswap32_if_le(i) of_bswap32(i) # define of_bswap64_if_le(i) of_bswap64(i) # define of_bswap32_vec_if_be(buffer, length) #endif #ifdef OF_FLOAT_BIG_ENDIAN # define of_bswap_float_if_be(i) of_bswap_float(i) # define of_bswap_double_if_be(i) of_bswap_double(i) # define of_bswap_float_if_le(i) (i) # define of_bswap_double_if_le(i) (i) #else # define of_bswap_float_if_be(i) (i) # define of_bswap_double_if_be(i) (i) # define of_bswap_float_if_le(i) of_bswap_float(i) # define of_bswap_double_if_le(i) of_bswap_double(i) #endif #define OF_ROL(value, bits) \ (((value) << ((bits) % (sizeof(value) * 8))) | \ (value) >> (sizeof(value) * 8 - ((bits) % (sizeof(value) * 8)))) #define OF_HASH_INIT(hash) hash = 0 #define OF_HASH_ADD(hash, byte) \ |
| ︙ |