mirror of git://sourceware.org/git/glibc.git
06caf53adf
C23 adds various <math.h> function families originally defined in TS 18661-4. Add the rootn functions, which compute the Yth root of X for integer Y (with a domain error if Y is 0, even if X is a NaN). The integer exponent has type long long int in C23; it was intmax_t in TS 18661-4, and as with other interfaces changed after their initial appearance in the TS, I don't think we need to support the original version of the interface. As with pown and compoundn, I strongly encourage searching for worst cases for ulps error for these implementations (necessarily non-exhaustively, given the size of the input space). I also expect a custom implementation for a given format could be much faster as well as more accurate, although the implementation is simpler than those for pown and compoundn. This completes adding to glibc those TS 18661-4 functions (ignoring DFP) that are included in C23. See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118592 regarding the C23 mathematical functions (not just the TS 18661-4 ones) missing built-in functions in GCC, where such functions might usefully be added. Tested for x86_64 and x86, and with build-many-glibcs.py. |
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| .. | ||
| htl | ||
| hurd | ||
| i386 | ||
| include | ||
| sys | ||
| x86 | ||
| x86_64 | ||
| Makefile | ||
| Subdirs | ||
| _strerror.c | ||
| adjtime.c | ||
| clock_gettime.c | ||
| clock_nanosleep.c | ||
| configure | ||
| configure.ac | ||
| getloadavg.c | ||
| getpagesize.c | ||
| getsysstats.c | ||
| libc-lock.h | ||
| libmachuser.abilist | ||
| mach_rpc.h | ||
| mprotect.c | ||
| msync.c | ||
| munmap.c | ||
| pagecopy.h | ||
| readonly-area-fallback.c | ||
| sched_yield.c | ||
| sleep.c | ||
| strerror_l.c | ||
| sysdep.h | ||
| thread_state.h | ||
| usleep.c | ||
| xpg-strerror.c | ||