mirror of git://sourceware.org/git/glibc.git
79c52daf47
C23 adds various <math.h> function families originally defined in TS 18661-4. Add the log2p1 functions (log2(1+x): like log1p, but for base-2 logarithms). This illustrates the intended structure of implementations of all these function families: define them initially with a type-generic template implementation. If someone wishes to add type-specific implementations, it is likely such implementations can be both faster and more accurate than the type-generic one and can then override it for types for which they are implemented (adding benchmarks would be desirable in such cases to demonstrate that a new implementation is indeed faster). The test inputs are copied from those for log1p. Note that these changes make gen-auto-libm-tests depend on MPFR 4.2 (or later). The bulk of the changes are fairly generic for any such new function. (sysdeps/powerpc/nofpu/Makefile only needs changing for those type-generic templates that use fabs.) Tested for x86_64 and x86, and with build-many-glibcs.py. |
||
|---|---|---|
| .. | ||
| bits | ||
| sys | ||
| Implies | ||
| Makefile | ||
| Versions | ||
| ____longjmp_chk.c | ||
| arch-syscall.h | ||
| atomic-machine.h | ||
| c++-types.data | ||
| clone.S | ||
| errlist-compat-data.h | ||
| fanotify_mark.c | ||
| getcontext.S | ||
| kernel-features.h | ||
| kernel_stat.h | ||
| ld.abilist | ||
| libBrokenLocale.abilist | ||
| libanl.abilist | ||
| libc.abilist | ||
| libc_malloc_debug.abilist | ||
| libdl.abilist | ||
| libm.abilist | ||
| libnsl.abilist | ||
| libpthread.abilist | ||
| libresolv.abilist | ||
| librt.abilist | ||
| libthread_db.abilist | ||
| libutil.abilist | ||
| localplt.data | ||
| makecontext.c | ||
| prlimit64.c | ||
| setcontext.S | ||
| shlib-versions | ||
| sigcontextinfo.h | ||
| single-thread.h | ||
| socket-constants-time64.h | ||
| struct_kernel_msqid64_ds.h | ||
| struct_kernel_semid64_ds.h | ||
| struct_kernel_shmid64_ds.h | ||
| swapcontext.S | ||
| syscalls.list | ||
| sysdep.c | ||
| sysdep.h | ||
| time64-compat.h | ||
| ucontext_i.sym | ||
| xstatver.h | ||