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Paul Eggert authored
Also, remove some duplicate comments related to thread.h. * src/regex-emacs.h (struct re_registers): * src/regex-emacs.c (SIGN_EXTEND_CHAR): Remove. (TALLOC, RETALLOC): Remove. All uses replaced by usual allocators, which check for integer overflow. (extract_number): Redo without using ‘unsigned’. (CHARSET_RANGE_TABLE_EXISTS_P): Clearly return a boolean. (print_fastmap, print_partial_compiled_pattern, CHECK_INFINITE_LOOP) (regex_compile, analyze_first, bcmp_translate, mutually_exclusive_p) (re_match_2_internal): Use bool for booleans. (print_fastmap, regex_compile, execute_charset): Prefer int to unsigned where either will do. (print_double_string): Prefer ptrdiff_t to ssize_t, since the latter can in theory be narrower than the former. Use fwrite instead of repeated putchar. (emacs_re_max_failures, fail_stack_type, compile_stack_type) (re_wctype_parse, regex_compile, re_search, re_search_2) (re_match_2, re_match_2_internal, re_compile_pattern): Prefer ptrdiff_t to size_t where either will do. (union fail_stack_elt, PUSH_FAILURE_REG, POP_FAILURE_REG_OR_COUNT): Make the integer an intptr_t, not long. (GET_BUFFER_SPACE, EXTEND_BUFFER, regex_compile): Use xpalloc to simplify allocation. (regex_compile): Check for integer overflow when calculating register numbers. * src/regex-emacs.c (re_set_registers, re_match_2_internal): * src/regex-emacs.h (struct re_registers, struct re_pattern_buffer): * src/search.c (Freplace_match): Prefer ptrdiff_t to unsigned where either will do. * src/regex-emacs.h (struct re_pattern_buffer): Prefer bool_bf to unsigned where either will do.
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