nuttx/libs/libc/string
Xiang Xiao c32b683085 !compiler: drop CONFIG_HAVE_LONG_LONG and require long long support
Every compiler supported by NuttX provides the "long long" types,
so the CONFIG_HAVE_LONG_LONG indirection is no longer useful.
Remove the option from include/nuttx/compiler.h and treat
"long long" as unconditionally available across the OS.

In addition to deleting the guard itself, this commit unconditionally
enables the long-long flavored helpers that used to be gated behind
it:

  - libs/libc/fixedmath: drop the soft-emulated b32/ub32 routines
    in lib_fixedmath.c (-261 lines) and trim the matching
    prototypes, Make.defs and CMakeLists.txt entries; keep only
    the long-long backed implementations.
  - include/sys/endian.h, include/strings.h, libs/libc/string
    /lib_ffsll.c, lib_flsll.c: always expose the 64-bit byte-swap
    and ffsll/flsll variants.
  - libs/libm/libm/lib_llround{,f,l}.c: drop the empty stubs.
  - libs/libc/stdlib (atoll, llabs, lldiv, strtoll/ull, rand48,
    strtold), libs/libc/stream (libvsprintf, libvscanf,
    libbsprintf, ultoa_invert), libs/libc/misc (crc64, crc64emac),
    libs/libc/inttypes/strtoimax, libs/libc/lzf, libs/libc/libc.csv,
    libs/libc/string (memset, vikmemcpy): remove the
    #ifdef CONFIG_HAVE_LONG_LONG branches.
  - include/{stddef.h,stdlib.h,fixedmath.h,sys/epoll.h,cxx/cstdlib,
    nuttx/audio/audio.h,nuttx/crc64.h,nuttx/lib/math.h,
    nuttx/lib/math32.h,nuttx/lib/stdbit.h}: same guard cleanup.
  - drivers/note/note_driver.c, fs/spiffs/src/spiffs.h,
    sched/irq/irq_procfs.c: drop their local guards as well.
  - Documentation/applications/netutils/ntpclient/index.rst:
    refresh the documentation snippet.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2026-05-19 16:21:28 +08:00
..
CMakeLists.txt
Kconfig
lib_bsdmemccpy.c
lib_bsdmemchr.c
lib_bsdmemcmp.c
lib_bsdmemcpy.c
lib_bsdmemrchr.c
lib_bsdmemset.c
lib_bsdstpcpy.c
lib_bsdstpncpy.c
lib_bsdstrcat.c
lib_bsdstrchr.c
lib_bsdstrchrnul.c
lib_bsdstrcmp.c
lib_bsdstrcpy.c
lib_bsdstrlen.c
lib_bsdstrncmp.c
lib_bsdstrncpy.c
lib_bsdstrrchr.c
lib_explicit_bzero.c
lib_ffs.c
lib_ffsl.c
lib_ffsll.c !compiler: drop CONFIG_HAVE_LONG_LONG and require long long support 2026-05-19 16:21:28 +08:00
lib_fls.c
lib_flsl.c
lib_flsll.c !compiler: drop CONFIG_HAVE_LONG_LONG and require long long support 2026-05-19 16:21:28 +08:00
lib_index.c
lib_isbasedigit.c
lib_memccpy.c
lib_memchr.c
lib_memcmp.c
lib_memcpy.c
lib_memmem.c
lib_memmove.c
lib_mempcpy.c
lib_memrchr.c
lib_memset.c !compiler: drop CONFIG_HAVE_LONG_LONG and require long long support 2026-05-19 16:21:28 +08:00
lib_popcount.c
lib_popcountl.c
lib_popcountll.c
lib_rawmemchr.c
lib_rindex.c
lib_skipspace.c
lib_stpcpy.c
lib_stpncpy.c
lib_strcasecmp.c
lib_strcasestr.c
lib_strcat.c
lib_strchr.c
lib_strchrnul.c
lib_strcmp.c
lib_strcoll.c
lib_strcpy.c
lib_strcspn.c
lib_strdup.c
lib_strerror.c
lib_strerrorr.c
lib_strlcat.c
lib_strlcpy.c
lib_strlen.c
lib_strncasecmp.c
lib_strncat.c
lib_strncmp.c
lib_strncpy.c
lib_strndup.c
lib_strnlen.c
lib_strpbrk.c
lib_strrchr.c
lib_strsep.c
lib_strsignal.c
lib_strspn.c
lib_strstr.c
lib_strtok.c
lib_strtokr.c
lib_strverscmp.c
lib_strxfrm.c
lib_timingsafe_bcmp.c
lib_vikmemcpy.c !compiler: drop CONFIG_HAVE_LONG_LONG and require long long support 2026-05-19 16:21:28 +08:00
Make.defs