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. |
||
|---|---|---|
| .. | ||
| bits | ||
| powerpc32 | ||
| powerpc64 | ||
| sys | ||
| Implies | ||
| Makefile | ||
| Versions | ||
| cancellation-pc-check.h | ||
| configure | ||
| configure.ac | ||
| cpu-features.c | ||
| cpu-features.h | ||
| dl-auxv.h | ||
| dl-cache.h | ||
| dl-hwcap-info.c | ||
| dl-hwcap-info.h | ||
| dl-support.c | ||
| elision-conf.c | ||
| elision-conf.h | ||
| elision-lock.c | ||
| elision-timed.c | ||
| elision-trylock.c | ||
| elision-unlock.c | ||
| get_timebase_freq.c | ||
| gettimeofday.c | ||
| htm.h | ||
| internal-ioctl.h | ||
| ipc_priv.h | ||
| kernel-features.h | ||
| kernel_sigaction.h | ||
| kernel_termios.h | ||
| ldd-rewrite.sed | ||
| libc-start.c | ||
| libc-start.h | ||
| libc-vdso.h | ||
| libpthread-compat.c | ||
| nldbl-abi.h | ||
| pointer_guard.h | ||
| pthread_attr_setstack.c | ||
| pthread_attr_setstacksize.c | ||
| readelflib.c | ||
| rt-sysdep.c | ||
| rtld_static_init.h | ||
| sigcontextinfo.h | ||
| socket-constants-time64.h | ||
| struct_kernel_shmid64_ds.h | ||
| syscall.S | ||
| syscall_cancel.S | ||
| sysconf.c | ||
| sysdep.c | ||
| sysdep.h | ||
| test-gettimebasefreq-static.c | ||
| test-gettimebasefreq.c | ||
| test-powerpc-linux-sysconf.c | ||
| time.c | ||
| tst-hwcap-tunables.c | ||
| xstatver.h | ||