2012-03-24 Bruno Haible <bruno@clisp.org>
Enable common subexpression optimization in GCC.
+ * lib/unitypes.in.h (_UC_ATTRIBUTE_CONST, _UC_ATTRIBUTE_PURE): New
+ macros.
+ * lib/unicase.in.h (uc_toupper, uc_tolower, uc_totitle): Declare with
+ GCC attribute 'const'.
+ (uc_locale_language): Declare with GCC attribute 'pure'.
+ * lib/unicase/caseprop.h (uc_is_cased, uc_is_case_ignorable): Declare
+ with GCC attribute 'const'.
+ * lib/unictype.in.h (uc_is_general_category_withtable,
+ uc_combining_class, uc_combining_class_name,
+ uc_combining_class_long_name, uc_bidi_class_name,
+ uc_bidi_category_name, uc_bidi_class_long_name, uc_bidi_class,
+ uc_bidi_category, uc_is_bidi_class, uc_is_bidi_category,
+ uc_decimal_value, uc_digit_value, uc_numeric_value,
+ uc_joining_type_name, uc_joining_type_long_name, uc_joining_type,
+ uc_joining_group_name, uc_joining_group, uc_is_property_*, uc_script,
+ uc_block, uc_is_c_whitespace, uc_is_java_whitespace,
+ uc_c_ident_category, uc_java_ident_category, uc_is_alnum, uc_is_alpha,
+ uc_is_cntrl, uc_is_digit, uc_is_graph, uc_is_lower, uc_is_print,
+ uc_is_punct, uc_is_space, uc_is_upper, uc_is_xdigit, uc_is_blank):
+ Declare with GCC attribute 'const'.
+ (uc_general_category_name, uc_general_category_long_name,
+ uc_general_category_byname, uc_general_category,
+ uc_is_general_category, uc_combining_class_byname,
+ uc_bidi_class_byname, uc_bidi_category_byname, uc_joining_type_byname,
+ uc_joining_group_byname, uc_script_byname, uc_is_script, uc_is_block):
+ Declare with GCC attribute 'pure'.
+ * lib/unigbrk.in.h (uc_graphemeclusterbreak_property,
+ uc_is_grapheme_break, u8_grapheme_next, u16_grapheme_next,
+ u32_grapheme_next, u8_grapheme_prev, u16_grapheme_prev,
+ u32_grapheme_prev, lib/uniname.in.h (unicode_name_character): Declare
+ with GCC attribute 'pure'.
+ * lib/uninorm.in.h (uc_composition): Declare with GCC attribute
+ 'const'.
+ (uninorm_decomposing_form): Declare with GCC attribute 'pure'.
+ * lib/unistr.in.h (): Declare with GCC attribute 'const'.
+ (u8_check, u16_check, u32_check, u8_mblen, u16_mblen, u32_mblen,
+ u8_cmp, u16_cmp, u32_cmp, u8_cmp2, u16_cmp2, u32_cmp2, u8_chr, u16_chr,
+ u32_chr, u8_mbsnlen, u16_mbsnlen, u32_mbsnlen, u8_strmblen,
+ u16_strmblen, u32_strmblen, u8_strlen, u16_strlen, u32_strlen,
+ u8_strnlen, u16_strnlen, u32_strnlen, u8_strcmp_gnu, u8_strcmp,
+ u16_strcmp, u32_strcmp, u8_strncmp, u16_strncmp, u32_strncmp,
+ u8_strchr, u16_strchr, u32_strchr, u8_strrchr, u16_strrchr,
+ u32_strrchr, u8_strcspn, u16_strcspn, u32_strcspn, u8_strspn,
+ u16_strspn, u32_strspn, u8_strpbrk, u16_strpbrk, u32_strpbrk,
+ u8_strstr, u16_strstr, u32_strstr, u8_startswith, u16_startswith,
+ u32_startswith, u8_endswith, u16_endswith, u32_endswith): Declare with
+ GCC attribute 'pure'.
+ * lib/uniwbrk.in.h (uc_wordbreak_property): Declare with GCC attribute
+ 'const'.
+ * lib/uniwidth.in.h (uc_width): Simplify declaration.
+ (u8_width, u16_width, u32_width, u8_strwidth, u16_strwidth,
+ u32_strwidth): Declare with GCC attribute 'pure'.
+
+ Enable common subexpression optimization in GCC.
* lib/dirent.in.h (_GL_ATTRIBUTE_PURE): Define, like in string.in.h.
(alphasort): Declare with GCC attribute 'pure'.
* lib/stdlib.in.h (_GL_ATTRIBUTE_PURE): Define, like in string.in.h.
/* Return the uppercase mapping of a Unicode character. */
extern ucs4_t
- uc_toupper (ucs4_t uc);
+ uc_toupper (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Return the lowercase mapping of a Unicode character. */
extern ucs4_t
- uc_tolower (ucs4_t uc);
+ uc_tolower (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Return the titlecase mapping of a Unicode character. */
extern ucs4_t
- uc_totitle (ucs4_t uc);
+ uc_totitle (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* ========================================================================= */
/* Return the ISO 639 language code of the current locale.
Return "" if it is unknown, or in the "C" locale. */
extern const char *
- uc_locale_language (void);
+ uc_locale_language (void)
+ _UC_ATTRIBUTE_PURE;
/* Conventions:
<http://www.unicode.org/versions/Unicode5.0.0/ch03.pdf>, section 3.13,
definition D120. */
extern bool
- uc_is_cased (ucs4_t uc);
+ uc_is_cased (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Determine whether a character is "case-ignorable"
according to the Unicode Standard,
<http://www.unicode.org/versions/Unicode5.0.0/ch03.pdf>, section 3.13,
definition D121. */
extern bool
- uc_is_case_ignorable (ucs4_t uc);
+ uc_is_case_ignorable (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Return the name of a general category. */
extern const char *
- uc_general_category_name (uc_general_category_t category);
+ uc_general_category_name (uc_general_category_t category)
+ _UC_ATTRIBUTE_PURE;
/* Return the long name of a general category. */
extern const char *
- uc_general_category_long_name (uc_general_category_t category);
+ uc_general_category_long_name (uc_general_category_t category)
+ _UC_ATTRIBUTE_PURE;
/* Return the general category given by name, e.g. "Lu", or by long name,
e.g. "Uppercase Letter". */
extern uc_general_category_t
- uc_general_category_byname (const char *category_name);
+ uc_general_category_byname (const char *category_name)
+ _UC_ATTRIBUTE_PURE;
/* Return the general category of a Unicode character. */
extern uc_general_category_t
- uc_general_category (ucs4_t uc);
+ uc_general_category (ucs4_t uc)
+ _UC_ATTRIBUTE_PURE;
/* Test whether a Unicode character belongs to a given category.
The CATEGORY argument can be the combination of several predefined
general categories. */
extern bool
- uc_is_general_category (ucs4_t uc, uc_general_category_t category);
+ uc_is_general_category (ucs4_t uc, uc_general_category_t category)
+ _UC_ATTRIBUTE_PURE;
/* Likewise. This function uses a big table comprising all categories. */
extern bool
- uc_is_general_category_withtable (ucs4_t uc, uint32_t bitmask);
+ uc_is_general_category_withtable (ucs4_t uc, uint32_t bitmask)
+ _UC_ATTRIBUTE_CONST;
/* ========================================================================= */
/* Return the canonical combining class of a Unicode character. */
extern int
- uc_combining_class (ucs4_t uc);
+ uc_combining_class (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Return the name of a canonical combining class. */
extern const char *
- uc_combining_class_name (int ccc);
+ uc_combining_class_name (int ccc)
+ _UC_ATTRIBUTE_CONST;
/* Return the long name of a canonical combining class. */
extern const char *
- uc_combining_class_long_name (int ccc);
+ uc_combining_class_long_name (int ccc)
+ _UC_ATTRIBUTE_CONST;
/* Return the canonical combining class given by name, e.g. "BL", or by long
name, e.g. "Below Left". */
extern int
- uc_combining_class_byname (const char *ccc_name);
+ uc_combining_class_byname (const char *ccc_name)
+ _UC_ATTRIBUTE_PURE;
/* ========================================================================= */
/* Return the name of a bidi class. */
extern const char *
- uc_bidi_class_name (int bidi_class);
+ uc_bidi_class_name (int bidi_class)
+ _UC_ATTRIBUTE_CONST;
/* Same; obsolete function name. */
extern const char *
- uc_bidi_category_name (int category);
+ uc_bidi_category_name (int category)
+ _UC_ATTRIBUTE_CONST;
/* Return the long name of a bidi class. */
extern const char *
- uc_bidi_class_long_name (int bidi_class);
+ uc_bidi_class_long_name (int bidi_class)
+ _UC_ATTRIBUTE_CONST;
/* Return the bidi class given by name, e.g. "LRE", or by long name, e.g.
"Left-to-Right Embedding". */
extern int
- uc_bidi_class_byname (const char *bidi_class_name);
+ uc_bidi_class_byname (const char *bidi_class_name)
+ _UC_ATTRIBUTE_PURE;
/* Same; obsolete function name. */
extern int
- uc_bidi_category_byname (const char *category_name);
+ uc_bidi_category_byname (const char *category_name)
+ _UC_ATTRIBUTE_PURE;
/* Return the bidi class of a Unicode character. */
extern int
- uc_bidi_class (ucs4_t uc);
+ uc_bidi_class (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Same; obsolete function name. */
extern int
- uc_bidi_category (ucs4_t uc);
+ uc_bidi_category (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Test whether a Unicode character belongs to a given bidi class. */
extern bool
- uc_is_bidi_class (ucs4_t uc, int bidi_class);
+ uc_is_bidi_class (ucs4_t uc, int bidi_class)
+ _UC_ATTRIBUTE_CONST;
/* Same; obsolete function name. */
extern bool
- uc_is_bidi_category (ucs4_t uc, int category);
+ uc_is_bidi_category (ucs4_t uc, int category)
+ _UC_ATTRIBUTE_CONST;
/* ========================================================================= */
/* Return the decimal digit value of a Unicode character. */
extern int
- uc_decimal_value (ucs4_t uc);
+ uc_decimal_value (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* ========================================================================= */
/* Return the digit value of a Unicode character. */
extern int
- uc_digit_value (ucs4_t uc);
+ uc_digit_value (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* ========================================================================= */
}
uc_fraction_t;
extern uc_fraction_t
- uc_numeric_value (ucs4_t uc);
+ uc_numeric_value (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* ========================================================================= */
/* Return the name of a joining type. */
extern const char *
- uc_joining_type_name (int joining_type);
+ uc_joining_type_name (int joining_type)
+ _UC_ATTRIBUTE_CONST;
/* Return the long name of a joining type. */
extern const char *
- uc_joining_type_long_name (int joining_type);
+ uc_joining_type_long_name (int joining_type)
+ _UC_ATTRIBUTE_CONST;
/* Return the joining type given by name, e.g. "D", or by long name, e.g.
"Dual Joining". */
extern int
- uc_joining_type_byname (const char *joining_type_name);
+ uc_joining_type_byname (const char *joining_type_name)
+ _UC_ATTRIBUTE_PURE;
/* Return the joining type of a Unicode character. */
extern int
- uc_joining_type (ucs4_t uc);
+ uc_joining_type (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* ========================================================================= */
/* Return the name of a joining group. */
extern const char *
- uc_joining_group_name (int joining_group);
+ uc_joining_group_name (int joining_group)
+ _UC_ATTRIBUTE_CONST;
/* Return the joining group given by name, e.g. "Teh_Marbuta". */
extern int
- uc_joining_group_byname (const char *joining_group_name);
+ uc_joining_group_byname (const char *joining_group_name)
+ _UC_ATTRIBUTE_PURE;
/* Return the joining group of a Unicode character. */
extern int
- uc_joining_group (ucs4_t uc);
+ uc_joining_group (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* ========================================================================= */
/* Test whether a Unicode character has a given property. */
extern bool
uc_is_property (ucs4_t uc, uc_property_t property);
-extern bool uc_is_property_white_space (ucs4_t uc);
-extern bool uc_is_property_alphabetic (ucs4_t uc);
-extern bool uc_is_property_other_alphabetic (ucs4_t uc);
-extern bool uc_is_property_not_a_character (ucs4_t uc);
-extern bool uc_is_property_default_ignorable_code_point (ucs4_t uc);
-extern bool uc_is_property_other_default_ignorable_code_point (ucs4_t uc);
-extern bool uc_is_property_deprecated (ucs4_t uc);
-extern bool uc_is_property_logical_order_exception (ucs4_t uc);
-extern bool uc_is_property_variation_selector (ucs4_t uc);
-extern bool uc_is_property_private_use (ucs4_t uc);
-extern bool uc_is_property_unassigned_code_value (ucs4_t uc);
-extern bool uc_is_property_uppercase (ucs4_t uc);
-extern bool uc_is_property_other_uppercase (ucs4_t uc);
-extern bool uc_is_property_lowercase (ucs4_t uc);
-extern bool uc_is_property_other_lowercase (ucs4_t uc);
-extern bool uc_is_property_titlecase (ucs4_t uc);
-extern bool uc_is_property_cased (ucs4_t uc);
-extern bool uc_is_property_case_ignorable (ucs4_t uc);
-extern bool uc_is_property_changes_when_lowercased (ucs4_t uc);
-extern bool uc_is_property_changes_when_uppercased (ucs4_t uc);
-extern bool uc_is_property_changes_when_titlecased (ucs4_t uc);
-extern bool uc_is_property_changes_when_casefolded (ucs4_t uc);
-extern bool uc_is_property_changes_when_casemapped (ucs4_t uc);
-extern bool uc_is_property_soft_dotted (ucs4_t uc);
-extern bool uc_is_property_id_start (ucs4_t uc);
-extern bool uc_is_property_other_id_start (ucs4_t uc);
-extern bool uc_is_property_id_continue (ucs4_t uc);
-extern bool uc_is_property_other_id_continue (ucs4_t uc);
-extern bool uc_is_property_xid_start (ucs4_t uc);
-extern bool uc_is_property_xid_continue (ucs4_t uc);
-extern bool uc_is_property_pattern_white_space (ucs4_t uc);
-extern bool uc_is_property_pattern_syntax (ucs4_t uc);
-extern bool uc_is_property_join_control (ucs4_t uc);
-extern bool uc_is_property_grapheme_base (ucs4_t uc);
-extern bool uc_is_property_grapheme_extend (ucs4_t uc);
-extern bool uc_is_property_other_grapheme_extend (ucs4_t uc);
-extern bool uc_is_property_grapheme_link (ucs4_t uc);
-extern bool uc_is_property_bidi_control (ucs4_t uc);
-extern bool uc_is_property_bidi_left_to_right (ucs4_t uc);
-extern bool uc_is_property_bidi_hebrew_right_to_left (ucs4_t uc);
-extern bool uc_is_property_bidi_arabic_right_to_left (ucs4_t uc);
-extern bool uc_is_property_bidi_european_digit (ucs4_t uc);
-extern bool uc_is_property_bidi_eur_num_separator (ucs4_t uc);
-extern bool uc_is_property_bidi_eur_num_terminator (ucs4_t uc);
-extern bool uc_is_property_bidi_arabic_digit (ucs4_t uc);
-extern bool uc_is_property_bidi_common_separator (ucs4_t uc);
-extern bool uc_is_property_bidi_block_separator (ucs4_t uc);
-extern bool uc_is_property_bidi_segment_separator (ucs4_t uc);
-extern bool uc_is_property_bidi_whitespace (ucs4_t uc);
-extern bool uc_is_property_bidi_non_spacing_mark (ucs4_t uc);
-extern bool uc_is_property_bidi_boundary_neutral (ucs4_t uc);
-extern bool uc_is_property_bidi_pdf (ucs4_t uc);
-extern bool uc_is_property_bidi_embedding_or_override (ucs4_t uc);
-extern bool uc_is_property_bidi_other_neutral (ucs4_t uc);
-extern bool uc_is_property_hex_digit (ucs4_t uc);
-extern bool uc_is_property_ascii_hex_digit (ucs4_t uc);
-extern bool uc_is_property_ideographic (ucs4_t uc);
-extern bool uc_is_property_unified_ideograph (ucs4_t uc);
-extern bool uc_is_property_radical (ucs4_t uc);
-extern bool uc_is_property_ids_binary_operator (ucs4_t uc);
-extern bool uc_is_property_ids_trinary_operator (ucs4_t uc);
-extern bool uc_is_property_zero_width (ucs4_t uc);
-extern bool uc_is_property_space (ucs4_t uc);
-extern bool uc_is_property_non_break (ucs4_t uc);
-extern bool uc_is_property_iso_control (ucs4_t uc);
-extern bool uc_is_property_format_control (ucs4_t uc);
-extern bool uc_is_property_dash (ucs4_t uc);
-extern bool uc_is_property_hyphen (ucs4_t uc);
-extern bool uc_is_property_punctuation (ucs4_t uc);
-extern bool uc_is_property_line_separator (ucs4_t uc);
-extern bool uc_is_property_paragraph_separator (ucs4_t uc);
-extern bool uc_is_property_quotation_mark (ucs4_t uc);
-extern bool uc_is_property_sentence_terminal (ucs4_t uc);
-extern bool uc_is_property_terminal_punctuation (ucs4_t uc);
-extern bool uc_is_property_currency_symbol (ucs4_t uc);
-extern bool uc_is_property_math (ucs4_t uc);
-extern bool uc_is_property_other_math (ucs4_t uc);
-extern bool uc_is_property_paired_punctuation (ucs4_t uc);
-extern bool uc_is_property_left_of_pair (ucs4_t uc);
-extern bool uc_is_property_combining (ucs4_t uc);
-extern bool uc_is_property_composite (ucs4_t uc);
-extern bool uc_is_property_decimal_digit (ucs4_t uc);
-extern bool uc_is_property_numeric (ucs4_t uc);
-extern bool uc_is_property_diacritic (ucs4_t uc);
-extern bool uc_is_property_extender (ucs4_t uc);
-extern bool uc_is_property_ignorable_control (ucs4_t uc);
+extern bool uc_is_property_white_space (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_alphabetic (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_other_alphabetic (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_not_a_character (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_default_ignorable_code_point (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_other_default_ignorable_code_point (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_deprecated (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_logical_order_exception (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_variation_selector (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_private_use (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_unassigned_code_value (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_uppercase (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_other_uppercase (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_lowercase (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_other_lowercase (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_titlecase (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_cased (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_case_ignorable (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_changes_when_lowercased (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_changes_when_uppercased (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_changes_when_titlecased (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_changes_when_casefolded (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_changes_when_casemapped (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_soft_dotted (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_id_start (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_other_id_start (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_id_continue (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_other_id_continue (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_xid_start (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_xid_continue (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_pattern_white_space (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_pattern_syntax (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_join_control (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_grapheme_base (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_grapheme_extend (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_other_grapheme_extend (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_grapheme_link (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_control (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_left_to_right (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_hebrew_right_to_left (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_arabic_right_to_left (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_european_digit (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_eur_num_separator (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_eur_num_terminator (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_arabic_digit (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_common_separator (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_block_separator (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_segment_separator (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_whitespace (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_non_spacing_mark (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_boundary_neutral (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_pdf (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_embedding_or_override (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_bidi_other_neutral (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_hex_digit (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_ascii_hex_digit (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_ideographic (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_unified_ideograph (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_radical (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_ids_binary_operator (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_ids_trinary_operator (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_zero_width (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_space (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_non_break (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_iso_control (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_format_control (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_dash (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_hyphen (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_punctuation (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_line_separator (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_paragraph_separator (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_quotation_mark (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_sentence_terminal (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_terminal_punctuation (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_currency_symbol (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_math (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_other_math (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_paired_punctuation (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_left_of_pair (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_combining (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_composite (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_decimal_digit (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_numeric (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_diacritic (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_extender (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
+extern bool uc_is_property_ignorable_control (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* ========================================================================= */
/* Return the script of a Unicode character. */
extern const uc_script_t *
- uc_script (ucs4_t uc);
+ uc_script (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Return the script given by name, e.g. "HAN". */
extern const uc_script_t *
- uc_script_byname (const char *script_name);
+ uc_script_byname (const char *script_name)
+ _UC_ATTRIBUTE_PURE;
/* Test whether a Unicode character belongs to a given script. */
extern bool
- uc_is_script (ucs4_t uc, const uc_script_t *script);
+ uc_is_script (ucs4_t uc, const uc_script_t *script)
+ _UC_ATTRIBUTE_PURE;
/* Get the list of all scripts. */
extern void
/* Return the block a character belongs to. */
extern const uc_block_t *
- uc_block (ucs4_t uc);
+ uc_block (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Test whether a Unicode character belongs to a given block. */
extern bool
- uc_is_block (ucs4_t uc, const uc_block_t *block);
+ uc_is_block (ucs4_t uc, const uc_block_t *block)
+ _UC_ATTRIBUTE_PURE;
/* Get the list of all blocks. */
extern void
/* Test whether a Unicode character is considered whitespace in ISO C 99. */
extern bool
- uc_is_c_whitespace (ucs4_t uc);
+ uc_is_c_whitespace (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Test whether a Unicode character is considered whitespace in Java. */
extern bool
- uc_is_java_whitespace (ucs4_t uc);
+ uc_is_java_whitespace (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
enum
{
/* Return the categorization of a Unicode character w.r.t. the ISO C 99
identifier syntax. */
extern int
- uc_c_ident_category (ucs4_t uc);
+ uc_c_ident_category (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Return the categorization of a Unicode character w.r.t. the Java
identifier syntax. */
extern int
- uc_java_ident_category (ucs4_t uc);
+ uc_java_ident_category (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* ========================================================================= */
/* Test for any character for which 'uc_is_alpha' or 'uc_is_digit' is true. */
extern bool
- uc_is_alnum (ucs4_t uc);
+ uc_is_alnum (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Test for any character for which 'uc_is_upper' or 'uc_is_lower' is true,
or any character that is one of a locale-specific set of characters for
which none of 'uc_is_cntrl', 'uc_is_digit', 'uc_is_punct', or 'uc_is_space'
is true. */
extern bool
- uc_is_alpha (ucs4_t uc);
+ uc_is_alpha (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Test for any control character. */
extern bool
- uc_is_cntrl (ucs4_t uc);
+ uc_is_cntrl (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Test for any character that corresponds to a decimal-digit character. */
extern bool
- uc_is_digit (ucs4_t uc);
+ uc_is_digit (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Test for any character for which 'uc_is_print' is true and 'uc_is_space'
is false. */
extern bool
- uc_is_graph (ucs4_t uc);
+ uc_is_graph (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Test for any character that corresponds to a lowercase letter or is one
of a locale-specific set of characters for which none of 'uc_is_cntrl',
'uc_is_digit', 'uc_is_punct', or 'uc_is_space' is true. */
extern bool
- uc_is_lower (ucs4_t uc);
+ uc_is_lower (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Test for any printing character. */
extern bool
- uc_is_print (ucs4_t uc);
+ uc_is_print (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Test for any printing character that is one of a locale-specific set of
characters for which neither 'uc_is_space' nor 'uc_is_alnum' is true. */
extern bool
- uc_is_punct (ucs4_t uc);
+ uc_is_punct (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Test for any character that corresponds to a locale-specific set of
characters for which none of 'uc_is_alnum', 'uc_is_graph', or 'uc_is_punct'
is true. */
extern bool
- uc_is_space (ucs4_t uc);
+ uc_is_space (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Test for any character that corresponds to an uppercase letter or is one
of a locale-specific set of character for which none of 'uc_is_cntrl',
'uc_is_digit', 'uc_is_punct', or 'uc_is_space' is true. */
extern bool
- uc_is_upper (ucs4_t uc);
+ uc_is_upper (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* Test for any character that corresponds to a hexadecimal-digit
character. */
extern bool
- uc_is_xdigit (ucs4_t uc);
+ uc_is_xdigit (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* GNU extension. */
/* Test for any character that corresponds to a standard blank character or
a locale-specific set of characters for which 'uc_is_alnum' is false. */
extern bool
- uc_is_blank (ucs4_t uc);
+ uc_is_blank (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* ========================================================================= */
/* Return the Grapheme_Cluster_Break property of a Unicode character. */
extern int
- uc_graphemeclusterbreak_property (ucs4_t uc);
+ uc_graphemeclusterbreak_property (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* ========================================================================= */
Use A == 0 or B == 0 to indicate start of text or end of text,
respectively. */
extern bool
- uc_is_grapheme_break (ucs4_t a, ucs4_t b);
+ uc_is_grapheme_break (ucs4_t a, ucs4_t b)
+ _UC_ATTRIBUTE_CONST;
/* Returns the start of the next grapheme cluster following S, or NULL if the
end of the string has been reached. */
extern const uint8_t *
- u8_grapheme_next (const uint8_t *s, const uint8_t *end);
+ u8_grapheme_next (const uint8_t *s, const uint8_t *end)
+ _UC_ATTRIBUTE_PURE;
extern const uint16_t *
- u16_grapheme_next (const uint16_t *s, const uint16_t *end);
+ u16_grapheme_next (const uint16_t *s, const uint16_t *end)
+ _UC_ATTRIBUTE_PURE;
extern const uint32_t *
- u32_grapheme_next (const uint32_t *s, const uint32_t *end);
+ u32_grapheme_next (const uint32_t *s, const uint32_t *end)
+ _UC_ATTRIBUTE_PURE;
/* Returns the start of the previous grapheme cluster before S, or NULL if the
start of the string has been reached. */
extern const uint8_t *
- u8_grapheme_prev (const uint8_t *s, const uint8_t *start);
+ u8_grapheme_prev (const uint8_t *s, const uint8_t *start)
+ _UC_ATTRIBUTE_PURE;
extern const uint16_t *
- u16_grapheme_prev (const uint16_t *s, const uint16_t *start);
+ u16_grapheme_prev (const uint16_t *s, const uint16_t *start)
+ _UC_ATTRIBUTE_PURE;
extern const uint32_t *
- u32_grapheme_prev (const uint32_t *s, const uint32_t *start);
+ u32_grapheme_prev (const uint32_t *s, const uint32_t *start)
+ _UC_ATTRIBUTE_PURE;
/* Determine the grapheme cluster boundaries in S, and store the result at
p[0..n-1]. p[i] = 1 means that a new grapheme cluster begins at s[i]. p[i]
/* Looks up the Unicode character with a given name, in upper- or lowercase
ASCII. Returns the character if found, or UNINAME_INVALID if not found. */
extern ucs4_t
- unicode_name_character (const char *name);
+ unicode_name_character (const char *name)
+ _UC_ATTRIBUTE_PURE;
#define UNINAME_INVALID ((ucs4_t) 0xFFFF)
#ifdef __cplusplus
Not all decompositions can be recombined using this function. See the
Unicode file CompositionExclusions.txt for details. */
extern ucs4_t
- uc_composition (ucs4_t uc1, ucs4_t uc2);
+ uc_composition (ucs4_t uc1, ucs4_t uc2)
+ _UC_ATTRIBUTE_CONST;
/* An object of type uninorm_t denotes a Unicode normalization form. */
/* Return the decomposing variant of a normalization form.
This maps NFC,NFD -> NFD and NFKC,NFKD -> NFKD. */
-extern uninorm_t uninorm_decomposing_form (uninorm_t nf);
+extern uninorm_t
+ uninorm_decomposing_form (uninorm_t nf)
+ _UC_ATTRIBUTE_PURE;
/* Return the specified normalization form of a string. */
/* Check whether an UTF-8 string is well-formed.
Return NULL if valid, or a pointer to the first invalid unit otherwise. */
extern const uint8_t *
- u8_check (const uint8_t *s, size_t n);
+ u8_check (const uint8_t *s, size_t n)
+ _UC_ATTRIBUTE_PURE;
/* Check whether an UTF-16 string is well-formed.
Return NULL if valid, or a pointer to the first invalid unit otherwise. */
extern const uint16_t *
- u16_check (const uint16_t *s, size_t n);
+ u16_check (const uint16_t *s, size_t n)
+ _UC_ATTRIBUTE_PURE;
/* Check whether an UCS-4 string is well-formed.
Return NULL if valid, or a pointer to the first invalid unit otherwise. */
extern const uint32_t *
- u32_check (const uint32_t *s, size_t n);
+ u32_check (const uint32_t *s, size_t n)
+ _UC_ATTRIBUTE_PURE;
/* Elementary string conversions. */
failure. */
/* Similar to mblen(), except that s must not be NULL. */
extern int
- u8_mblen (const uint8_t *s, size_t n);
+ u8_mblen (const uint8_t *s, size_t n)
+ _UC_ATTRIBUTE_PURE;
extern int
- u16_mblen (const uint16_t *s, size_t n);
+ u16_mblen (const uint16_t *s, size_t n)
+ _UC_ATTRIBUTE_PURE;
extern int
- u32_mblen (const uint32_t *s, size_t n);
+ u32_mblen (const uint32_t *s, size_t n)
+ _UC_ATTRIBUTE_PURE;
/* Return the length (number of units) of the first character in S, putting
its 'ucs4_t' representation in *PUC. Upon failure, *PUC is set to 0xfffd,
/* Compare S1 and S2, each of length N. */
/* Similar to memcmp(). */
extern int
- u8_cmp (const uint8_t *s1, const uint8_t *s2, size_t n);
+ u8_cmp (const uint8_t *s1, const uint8_t *s2, size_t n)
+ _UC_ATTRIBUTE_PURE;
extern int
- u16_cmp (const uint16_t *s1, const uint16_t *s2, size_t n);
+ u16_cmp (const uint16_t *s1, const uint16_t *s2, size_t n)
+ _UC_ATTRIBUTE_PURE;
extern int
- u32_cmp (const uint32_t *s1, const uint32_t *s2, size_t n);
+ u32_cmp (const uint32_t *s1, const uint32_t *s2, size_t n)
+ _UC_ATTRIBUTE_PURE;
/* Compare S1 and S2. */
/* Similar to the gnulib function memcmp2(). */
extern int
- u8_cmp2 (const uint8_t *s1, size_t n1, const uint8_t *s2, size_t n2);
+ u8_cmp2 (const uint8_t *s1, size_t n1, const uint8_t *s2, size_t n2)
+ _UC_ATTRIBUTE_PURE;
extern int
- u16_cmp2 (const uint16_t *s1, size_t n1, const uint16_t *s2, size_t n2);
+ u16_cmp2 (const uint16_t *s1, size_t n1, const uint16_t *s2, size_t n2)
+ _UC_ATTRIBUTE_PURE;
extern int
- u32_cmp2 (const uint32_t *s1, size_t n1, const uint32_t *s2, size_t n2);
+ u32_cmp2 (const uint32_t *s1, size_t n1, const uint32_t *s2, size_t n2)
+ _UC_ATTRIBUTE_PURE;
/* Search the string at S for UC. */
/* Similar to memchr(). */
extern uint8_t *
- u8_chr (const uint8_t *s, size_t n, ucs4_t uc);
+ u8_chr (const uint8_t *s, size_t n, ucs4_t uc)
+ _UC_ATTRIBUTE_PURE;
extern uint16_t *
- u16_chr (const uint16_t *s, size_t n, ucs4_t uc);
+ u16_chr (const uint16_t *s, size_t n, ucs4_t uc)
+ _UC_ATTRIBUTE_PURE;
extern uint32_t *
- u32_chr (const uint32_t *s, size_t n, ucs4_t uc);
+ u32_chr (const uint32_t *s, size_t n, ucs4_t uc)
+ _UC_ATTRIBUTE_PURE;
/* Count the number of Unicode characters in the N units from S. */
/* Similar to mbsnlen(). */
extern size_t
- u8_mbsnlen (const uint8_t *s, size_t n);
+ u8_mbsnlen (const uint8_t *s, size_t n)
+ _UC_ATTRIBUTE_PURE;
extern size_t
- u16_mbsnlen (const uint16_t *s, size_t n);
+ u16_mbsnlen (const uint16_t *s, size_t n)
+ _UC_ATTRIBUTE_PURE;
extern size_t
- u32_mbsnlen (const uint32_t *s, size_t n);
+ u32_mbsnlen (const uint32_t *s, size_t n)
+ _UC_ATTRIBUTE_PURE;
/* Elementary string functions with memory allocation. */
/* Return the length (number of units) of the first character in S.
Return 0 if it is the NUL character. Return -1 upon failure. */
extern int
- u8_strmblen (const uint8_t *s);
+ u8_strmblen (const uint8_t *s)
+ _UC_ATTRIBUTE_PURE;
extern int
- u16_strmblen (const uint16_t *s);
+ u16_strmblen (const uint16_t *s)
+ _UC_ATTRIBUTE_PURE;
extern int
- u32_strmblen (const uint32_t *s);
+ u32_strmblen (const uint32_t *s)
+ _UC_ATTRIBUTE_PURE;
/* Return the length (number of units) of the first character in S, putting
its 'ucs4_t' representation in *PUC. Return 0 if it is the NUL
/* Return the number of units in S. */
/* Similar to strlen(), wcslen(). */
extern size_t
- u8_strlen (const uint8_t *s);
+ u8_strlen (const uint8_t *s)
+ _UC_ATTRIBUTE_PURE;
extern size_t
- u16_strlen (const uint16_t *s);
+ u16_strlen (const uint16_t *s)
+ _UC_ATTRIBUTE_PURE;
extern size_t
- u32_strlen (const uint32_t *s);
+ u32_strlen (const uint32_t *s)
+ _UC_ATTRIBUTE_PURE;
/* Return the number of units in S, but at most MAXLEN. */
/* Similar to strnlen(), wcsnlen(). */
extern size_t
- u8_strnlen (const uint8_t *s, size_t maxlen);
+ u8_strnlen (const uint8_t *s, size_t maxlen)
+ _UC_ATTRIBUTE_PURE;
extern size_t
- u16_strnlen (const uint16_t *s, size_t maxlen);
+ u16_strnlen (const uint16_t *s, size_t maxlen)
+ _UC_ATTRIBUTE_PURE;
extern size_t
- u32_strnlen (const uint32_t *s, size_t maxlen);
+ u32_strnlen (const uint32_t *s, size_t maxlen)
+ _UC_ATTRIBUTE_PURE;
/* Copy SRC to DEST. */
/* Similar to strcpy(), wcscpy(). */
#ifdef __sun
/* Avoid a collision with the u8_strcmp() function in Solaris 11 libc. */
extern int
- u8_strcmp_gnu (const uint8_t *s1, const uint8_t *s2);
+ u8_strcmp_gnu (const uint8_t *s1, const uint8_t *s2)
+ _UC_ATTRIBUTE_PURE;
# define u8_strcmp u8_strcmp_gnu
#else
extern int
- u8_strcmp (const uint8_t *s1, const uint8_t *s2);
+ u8_strcmp (const uint8_t *s1, const uint8_t *s2)
+ _UC_ATTRIBUTE_PURE;
#endif
extern int
- u16_strcmp (const uint16_t *s1, const uint16_t *s2);
+ u16_strcmp (const uint16_t *s1, const uint16_t *s2)
+ _UC_ATTRIBUTE_PURE;
extern int
- u32_strcmp (const uint32_t *s1, const uint32_t *s2);
+ u32_strcmp (const uint32_t *s1, const uint32_t *s2)
+ _UC_ATTRIBUTE_PURE;
/* Compare S1 and S2 using the collation rules of the current locale.
Return -1 if S1 < S2, 0 if S1 = S2, 1 if S1 > S2.
/* Compare no more than N units of S1 and S2. */
/* Similar to strncmp(), wcsncmp(). */
extern int
- u8_strncmp (const uint8_t *s1, const uint8_t *s2, size_t n);
+ u8_strncmp (const uint8_t *s1, const uint8_t *s2, size_t n)
+ _UC_ATTRIBUTE_PURE;
extern int
- u16_strncmp (const uint16_t *s1, const uint16_t *s2, size_t n);
+ u16_strncmp (const uint16_t *s1, const uint16_t *s2, size_t n)
+ _UC_ATTRIBUTE_PURE;
extern int
- u32_strncmp (const uint32_t *s1, const uint32_t *s2, size_t n);
+ u32_strncmp (const uint32_t *s1, const uint32_t *s2, size_t n)
+ _UC_ATTRIBUTE_PURE;
/* Duplicate S, returning an identical malloc'd string. */
/* Similar to strdup(), wcsdup(). */
/* Find the first occurrence of UC in STR. */
/* Similar to strchr(), wcschr(). */
extern uint8_t *
- u8_strchr (const uint8_t *str, ucs4_t uc);
+ u8_strchr (const uint8_t *str, ucs4_t uc)
+ _UC_ATTRIBUTE_PURE;
extern uint16_t *
- u16_strchr (const uint16_t *str, ucs4_t uc);
+ u16_strchr (const uint16_t *str, ucs4_t uc)
+ _UC_ATTRIBUTE_PURE;
extern uint32_t *
- u32_strchr (const uint32_t *str, ucs4_t uc);
+ u32_strchr (const uint32_t *str, ucs4_t uc)
+ _UC_ATTRIBUTE_PURE;
/* Find the last occurrence of UC in STR. */
/* Similar to strrchr(), wcsrchr(). */
extern uint8_t *
- u8_strrchr (const uint8_t *str, ucs4_t uc);
+ u8_strrchr (const uint8_t *str, ucs4_t uc)
+ _UC_ATTRIBUTE_PURE;
extern uint16_t *
- u16_strrchr (const uint16_t *str, ucs4_t uc);
+ u16_strrchr (const uint16_t *str, ucs4_t uc)
+ _UC_ATTRIBUTE_PURE;
extern uint32_t *
- u32_strrchr (const uint32_t *str, ucs4_t uc);
+ u32_strrchr (const uint32_t *str, ucs4_t uc)
+ _UC_ATTRIBUTE_PURE;
/* Return the length of the initial segment of STR which consists entirely
of Unicode characters not in REJECT. */
/* Similar to strcspn(), wcscspn(). */
extern size_t
- u8_strcspn (const uint8_t *str, const uint8_t *reject);
+ u8_strcspn (const uint8_t *str, const uint8_t *reject)
+ _UC_ATTRIBUTE_PURE;
extern size_t
- u16_strcspn (const uint16_t *str, const uint16_t *reject);
+ u16_strcspn (const uint16_t *str, const uint16_t *reject)
+ _UC_ATTRIBUTE_PURE;
extern size_t
- u32_strcspn (const uint32_t *str, const uint32_t *reject);
+ u32_strcspn (const uint32_t *str, const uint32_t *reject)
+ _UC_ATTRIBUTE_PURE;
/* Return the length of the initial segment of STR which consists entirely
of Unicode characters in ACCEPT. */
/* Similar to strspn(), wcsspn(). */
extern size_t
- u8_strspn (const uint8_t *str, const uint8_t *accept);
+ u8_strspn (const uint8_t *str, const uint8_t *accept)
+ _UC_ATTRIBUTE_PURE;
extern size_t
- u16_strspn (const uint16_t *str, const uint16_t *accept);
+ u16_strspn (const uint16_t *str, const uint16_t *accept)
+ _UC_ATTRIBUTE_PURE;
extern size_t
- u32_strspn (const uint32_t *str, const uint32_t *accept);
+ u32_strspn (const uint32_t *str, const uint32_t *accept)
+ _UC_ATTRIBUTE_PURE;
/* Find the first occurrence in STR of any character in ACCEPT. */
/* Similar to strpbrk(), wcspbrk(). */
extern uint8_t *
- u8_strpbrk (const uint8_t *str, const uint8_t *accept);
+ u8_strpbrk (const uint8_t *str, const uint8_t *accept)
+ _UC_ATTRIBUTE_PURE;
extern uint16_t *
- u16_strpbrk (const uint16_t *str, const uint16_t *accept);
+ u16_strpbrk (const uint16_t *str, const uint16_t *accept)
+ _UC_ATTRIBUTE_PURE;
extern uint32_t *
- u32_strpbrk (const uint32_t *str, const uint32_t *accept);
+ u32_strpbrk (const uint32_t *str, const uint32_t *accept)
+ _UC_ATTRIBUTE_PURE;
/* Find the first occurrence of NEEDLE in HAYSTACK. */
/* Similar to strstr(), wcsstr(). */
extern uint8_t *
- u8_strstr (const uint8_t *haystack, const uint8_t *needle);
+ u8_strstr (const uint8_t *haystack, const uint8_t *needle)
+ _UC_ATTRIBUTE_PURE;
extern uint16_t *
- u16_strstr (const uint16_t *haystack, const uint16_t *needle);
+ u16_strstr (const uint16_t *haystack, const uint16_t *needle)
+ _UC_ATTRIBUTE_PURE;
extern uint32_t *
- u32_strstr (const uint32_t *haystack, const uint32_t *needle);
+ u32_strstr (const uint32_t *haystack, const uint32_t *needle)
+ _UC_ATTRIBUTE_PURE;
/* Test whether STR starts with PREFIX. */
extern bool
- u8_startswith (const uint8_t *str, const uint8_t *prefix);
+ u8_startswith (const uint8_t *str, const uint8_t *prefix)
+ _UC_ATTRIBUTE_PURE;
extern bool
- u16_startswith (const uint16_t *str, const uint16_t *prefix);
+ u16_startswith (const uint16_t *str, const uint16_t *prefix)
+ _UC_ATTRIBUTE_PURE;
extern bool
- u32_startswith (const uint32_t *str, const uint32_t *prefix);
+ u32_startswith (const uint32_t *str, const uint32_t *prefix)
+ _UC_ATTRIBUTE_PURE;
/* Test whether STR ends with SUFFIX. */
extern bool
- u8_endswith (const uint8_t *str, const uint8_t *suffix);
+ u8_endswith (const uint8_t *str, const uint8_t *suffix)
+ _UC_ATTRIBUTE_PURE;
extern bool
- u16_endswith (const uint16_t *str, const uint16_t *suffix);
+ u16_endswith (const uint16_t *str, const uint16_t *suffix)
+ _UC_ATTRIBUTE_PURE;
extern bool
- u32_endswith (const uint32_t *str, const uint32_t *suffix);
+ u32_endswith (const uint32_t *str, const uint32_t *suffix)
+ _UC_ATTRIBUTE_PURE;
/* Divide STR into tokens separated by characters in DELIM.
This interface is actually more similar to wcstok than to strtok. */
-/* Elementary types for the GNU UniString library.
+/* Elementary types and macros for the GNU UniString library.
Copyright (C) 2002, 2005-2006, 2009-2012 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify it
/* Type representing a Unicode character. */
typedef uint32_t ucs4_t;
+/* Attribute of a function whose result depends only on the arguments
+ (not pointers!) and which has no side effects. */
+#ifndef _UC_ATTRIBUTE_CONST
+# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
+# define _UC_ATTRIBUTE_CONST __attribute__ ((__const__))
+# else
+# define _UC_ATTRIBUTE_CONST
+# endif
+#endif
+
+/* Attribute of a function whose result depends only on the arguments
+ (possibly pointers) and global memory, and which has no side effects. */
+#ifndef _UC_ATTRIBUTE_PURE
+# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
+# define _UC_ATTRIBUTE_PURE __attribute__ ((__pure__))
+# else
+# define _UC_ATTRIBUTE_PURE
+# endif
+#endif
+
#endif /* _UNITYPES_H */
/* Return the Word_Break property of a Unicode character. */
extern int
- uc_wordbreak_property (ucs4_t uc);
+ uc_wordbreak_property (ucs4_t uc)
+ _UC_ATTRIBUTE_CONST;
/* ========================================================================= */
/* Determine number of column positions required for UC. */
extern int
uc_width (ucs4_t uc, const char *encoding)
-#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
- __attribute__ ((__pure__))
-#endif
- ;
+ _UC_ATTRIBUTE_PURE;
/* Determine number of column positions required for first N units
(or fewer if S ends before this) in S. */
extern int
- u8_width (const uint8_t *s, size_t n, const char *encoding);
+ u8_width (const uint8_t *s, size_t n, const char *encoding)
+ _UC_ATTRIBUTE_PURE;
extern int
- u16_width (const uint16_t *s, size_t n, const char *encoding);
+ u16_width (const uint16_t *s, size_t n, const char *encoding)
+ _UC_ATTRIBUTE_PURE;
extern int
- u32_width (const uint32_t *s, size_t n, const char *encoding);
+ u32_width (const uint32_t *s, size_t n, const char *encoding)
+ _UC_ATTRIBUTE_PURE;
/* Determine number of column positions required for S. */
extern int
- u8_strwidth (const uint8_t *s, const char *encoding);
+ u8_strwidth (const uint8_t *s, const char *encoding)
+ _UC_ATTRIBUTE_PURE;
extern int
- u16_strwidth (const uint16_t *s, const char *encoding);
+ u16_strwidth (const uint16_t *s, const char *encoding)
+ _UC_ATTRIBUTE_PURE;
extern int
- u32_strwidth (const uint32_t *s, const char *encoding);
+ u32_strwidth (const uint32_t *s, const char *encoding)
+ _UC_ATTRIBUTE_PURE;
#ifdef __cplusplus
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