Adjust some comments, add some explicit fall through comments or explicit
returns where necessary to not get implicit-fallthrough warnings.
All fall throughs were deliberate. In one case I added an explicit return
false for clarity instead of falling through a default case (that also
would return false).
libiberty/ChangeLog:
* cplus-dem.c (demangle_signature): Move fall through comment.
(demangle_fund_type): Add fall through comment between 'G' and 'I'.
* hashtab.c (iterative_hash): Add fall through comments.
* regex.c (regex_compile): Add Fall through comment after '+'/'?'.
(byte_re_match_2_internal): Add Fall through comment after jump_n.
Change "Note fall through" to "Fall through".
(common_op_match_null_string_p): Return false after set_number_at
instead of fall through.
PR target/39065
* configure.ac: Also check for intptr_t.
* config.h.in: Regenerated.
* configure: Regenerated.
* hashtab.c (hash_pointer): Cast the pointer argument to intptr_t
instead of of long.
xcalloc depending on htab->return_allocation_failure. Return zero
if calloc fails.
(htab_create): Update comment to cover memory allocation.
(htab_try_create): New.
(htab_find_slot_with_hash): Return NULL if htab_expand fails.
Update comment to cover this.
if HAVE_STRING_H.
* pexecute.c, xexit.c: Include stdlib.h if HAVE_STDLIB_H.
* objalloc.c: Include config.h. Include stdlib.h and don't
declare malloc or free if HAVE_STDLIB_H.
* strerror.c, strsignal.c: Include stdlib.h if HAVE_STDLIB_H,
else declare malloc without prototype. Include string.h if
HAVE_STRING_H, else declare memset without prototype. Don't
include stddef.h.
* sort.c: Bring over from GCC.
Alan Modra