maint: prefer NULL to nullptr

2026-01-18T15:55:38Z

NULL is best for C as discussed at: https://bugs.gnu.org/66221#53 * bootstrap.conf: Remove dependency on nullptr. * s/nullptr/NULL/.

maint: prefer endian.h macros to WORDS_BIGENDIAN, part 2

2025-07-05T03:52:37Z

* src/blake2/blake2-impl.h: Include endian.h. Use BYTE_ORDER and LITTLE_ENDIAN instead of WORDS_BIGENDIAN.

digest: omit unnecessary b2sum includes

2023-10-30T07:58:03Z

* src/blake2/b2sum.c: Do not include string.h, errno.h, ctype.h, unistd.h, getopt.h.

maint: improve static and dynamic checking

2023-07-01T18:51:15Z

This modernizes the source code somewhat, to take advantage of advances in GCC over the years, and Gnulib’s ‘assure’ module. Include assure.h in files that now need it. Do not include assert.h directly; it’s no longer needed. * bootstrap.conf (gnulib_modules): Add ‘assure’. * gl/lib/randread.c (randread_error): * src/chmod.c (describe_change): * src/chown-core.c (describe_change): * src/cp.c (decode_preserve_arg): * src/head.c (diagnose_copy_fd_failure): * src/ls.c (parse_ls_color): * src/od.c (decode_one_format): * src/split.c (main): * src/test.c (binary_operator, posixtest): Prefer affirm to abort, since it has better diagnostics in the normal case and better performance with -DNDEBUG. * gl/lib/xdectoint.c, src/die.h: Include stddef.h, for unreachable. * gl/lib/xdectoint.c: Do not include verify.h; no longer needed. * gl/lib/xdectoint.c (__xnumtoint): * src/die.h (die): Prefer C23 unreachable () to assume (false). * gl/lib/xfts.c (xfts_open): * src/basenc.c (base32hex_encode): * src/copy.c (abandon_move, copy_internal, valid_options): * src/cut.c (cut_fields): * src/df.c (alloc_field, decode_output_arg, get_dev): * src/du.c (process_file, main): * src/echo.c (usage): * src/factor.c (udiv_qrnnd, mod2, gcd2_odd, factor_insert_large) (mulredc2, factor_using_pollard_rho, isqrt2, div_smallq) (factor_using_squfof): * src/iopoll.c (iopoll_internal, fwrite_wait): * src/join.c (add_field): * src/ls.c (dev_ino_pop, main, gobble_file, sort_files): * src/mv.c (do_move): * src/od.c (decode_format_string, read_block, dump, main): * src/remove.c (rm): * src/rm.c (main): * src/sort.c (stream_open): * src/split.c (next_file_name, lines_chunk_split): * src/stdbuf.c (main): * src/stty.c (set_speed): * src/tac-pipe.c (line_ptr_decrement, line_ptr_increment): * src/touch.c (touch): * src/tr.c (find_bracketed_repeat, get_next) (validate_case_classes, get_spec_stats, string2_extend, main): * src/tsort.c (search_item, tsort): * src/wc.c (main): Prefer affirm to assert, as it allows for better static checking when compiling with -DNDEBUG. * src/chown-core.c (change_file_owner): * src/df.c (get_field_list): * src/expr.c (printv, null, tostring, toarith, eval2): * src/ls.c (time_type_to_statx, calc_req_mask, get_funky_string) (print_long_format): * src/numfmt.c (simple_strtod_fatal): * src/od.c (decode_one_format): * src/stty.c (mode_type_flag): * src/tail.c (xlseek): * src/tr.c (is_char_class_member, get_next, get_spec_stats) (string2_extend): Prefer unreachable () to abort () or assert (false) when merely pacifying the compiler, e.g., in a switch statement on an enum where all cases are covered. * src/copy.c (valid_options): Now returns void; the bool was useless. Caller no longer needs to assert. * src/csplit.c (find_line): * src/expand-common.c (next_file): * src/shred.c (incname): * src/sort.c (main): * src/tr.c (append_normal_char, append_range, append_char_class) (append_repeated_char, append_equiv_class): * src/tsort.c (search_item): Omit assert, since the hardware will check for us. * src/df.c (header_mode): Now the enum type it should have been. * src/du.c (process_file): * src/ls.c (assert_matching_dev_ino): * src/tail.c (valid_file_spec): * src/tr.c (validate_case_classes): Mark defns with MAYBE_UNUSED if they’re not used when -DNDEBUG. * src/factor.c (prime_p, prime2_p, mp_prime_p): Now ATTRIBUTE_PURE. Prefer affirm to error+abort. No need to translate this diagnostic. * src/fmt.c (get_paragraph): * src/stty.c (display_changed, display_all, sane_mode): * src/who.c (idle_string): Prefer assume to assert, since the goal is merely pacification and assert doesn’t pacify anyway if -DNDEBUG is used. * src/join.c (decode_field_spec): Omit unreachable abort. * src/ls.c (assert_matching_dev_ino, main): * src/tr.c (get_next): Prefer assure to assert, since the check is relatively expensive and won’t help static analysis. * src/ls.c (main): Prefer static_assert to assert of a constant expression. (format_inode): Redo to make it clear that buflen doesn’t matter, and that buf must have a certain number of bytes. All callers changed. This pacifies -Wformat-overflow. * src/od.c (decode_one_format): Omit an assert that tested for obviously undefined behavior, as the compiler could optimize it away anyway. * src/od.c (decode_one_format, decode_format_string): Prefer ATTRIBUTE_NONNULL to runtime checking. * src/stat.c: Do not include since system.h does that now. * src/sync.c (sync_arg): Prefer unreachable () to assert (true), which was a typo. * src/system.h: Include stddef.h, for unreachable. * src/tail.c (xlseek): Simplify by relying on ‘error’ to exit.

maint: prefer C23-style nullptr

2023-06-29T22:29:29Z

* bootstrap.conf (gnulib_modules): Add nullptr. In code, prefer nullptr to NULL where either will do.

maint: don’t include config.h twice

2022-09-15T05:44:01Z

* gl/lib/fadvise.h, gl/lib/smack.h, src/blake2/blake2-impl.h: Do not include config.h from a .h file. config.h is supposed to be included once, at the start of compilation and before any other file.

maint: adjust to Gnulib stdbool C23 change

2022-09-13T04:07:06Z

* gl/lib/mbsalign.c, gl/lib/randread.c, gl/lib/targetdir.h: * gl/lib/xdectoint.c, gl/lib/xfts.c, gl/lib/xfts.h: * src/blake2/b2sum.c, src/copy.h, src/die.h, src/system.h: Don’t include , since Gnulib now emulates C23.

maint: use GNU style for spacing

2021-12-18T17:35:04Z

maint: add function attributes to .h files

2021-11-01T05:36:46Z

Add _GL_ATTRIBUTE_NONNULL, _GL_ATTRIBUTE_MALLOC, _GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_DALLOC_FREE, _GL_ATTRIBUTE_RETURNS_NONNULL to .h files when appropriate. * gl/lib/mbsalign.h, gl/lib/randperm.h, src/chown-core.h: Include stdlib.h, for the benefit of _GL_ATTRIBUTE_DALLOC_FREE. * gl/lib/randread.c (randread_free_body): New static function. (randread_new, randread_free): Use it. * src/copy.c (valid_options): Remove assert that is no longer needed because it is now checked statically.

b2sum: simplify attribute usage