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Edit File: wctype-wchar.h

/* Copyright (C) 1996-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ /* * ISO C99 Standard: 7.25 * Wide character classification and mapping utilities <wctype.h> */ #ifndef _BITS_WCTYPE_WCHAR_H #define _BITS_WCTYPE_WCHAR_H 1 #if !defined _WCTYPE_H && !defined _WCHAR_H #error "Never include <bits/wctype-wchar.h> directly; include <wctype.h> or <wchar.h> instead." #endif #include <bits/types.h> #include <bits/types/wint_t.h> /* The definitions in this header are specified to appear in <wctype.h> in ISO C99, but in <wchar.h> in Unix98. _GNU_SOURCE follows C99. */ /* Scalar type that can hold values which represent locale-specific character classifications. */ typedef unsigned long int wctype_t; # ifndef _ISwbit /* The characteristics are stored always in network byte order (big endian). We define the bit value interpretations here dependent on the machine's byte order. */ # include <endian.h> # if __BYTE_ORDER == __BIG_ENDIAN # define _ISwbit(bit) (1 << (bit)) # else /* __BYTE_ORDER == __LITTLE_ENDIAN */ # define _ISwbit(bit) \ ((bit) < 8 ? (int) ((1UL << (bit)) << 24) \ : ((bit) < 16 ? (int) ((1UL << (bit)) << 8) \ : ((bit) < 24 ? (int) ((1UL << (bit)) >> 8) \ : (int) ((1UL << (bit)) >> 24)))) # endif enum { __ISwupper = 0, /* UPPERCASE. */ __ISwlower = 1, /* lowercase. */ __ISwalpha = 2, /* Alphabetic. */ __ISwdigit = 3, /* Numeric. */ __ISwxdigit = 4, /* Hexadecimal numeric. */ __ISwspace = 5, /* Whitespace. */ __ISwprint = 6, /* Printing. */ __ISwgraph = 7, /* Graphical. */ __ISwblank = 8, /* Blank (usually SPC and TAB). */ __ISwcntrl = 9, /* Control character. */ __ISwpunct = 10, /* Punctuation. */ __ISwalnum = 11, /* Alphanumeric. */ _ISwupper = _ISwbit (__ISwupper), /* UPPERCASE. */ _ISwlower = _ISwbit (__ISwlower), /* lowercase. */ _ISwalpha = _ISwbit (__ISwalpha), /* Alphabetic. */ _ISwdigit = _ISwbit (__ISwdigit), /* Numeric. */ _ISwxdigit = _ISwbit (__ISwxdigit), /* Hexadecimal numeric. */ _ISwspace = _ISwbit (__ISwspace), /* Whitespace. */ _ISwprint = _ISwbit (__ISwprint), /* Printing. */ _ISwgraph = _ISwbit (__ISwgraph), /* Graphical. */ _ISwblank = _ISwbit (__ISwblank), /* Blank (usually SPC and TAB). */ _ISwcntrl = _ISwbit (__ISwcntrl), /* Control character. */ _ISwpunct = _ISwbit (__ISwpunct), /* Punctuation. */ _ISwalnum = _ISwbit (__ISwalnum) /* Alphanumeric. */ }; # endif /* Not _ISwbit */ __BEGIN_DECLS /* * Wide-character classification functions: 7.15.2.1. */ /* Test for any wide character for which `iswalpha' or `iswdigit' is true. */ extern int iswalnum (wint_t __wc) __THROW; /* Test for any wide character for which `iswupper' or 'iswlower' is true, or any wide character that is one of a locale-specific set of wide-characters for which none of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true. */ extern int iswalpha (wint_t __wc) __THROW; /* Test for any control wide character. */ extern int iswcntrl (wint_t __wc) __THROW; /* Test for any wide character that corresponds to a decimal-digit character. */ extern int iswdigit (wint_t __wc) __THROW; /* Test for any wide character for which `iswprint' is true and `iswspace' is false. */ extern int iswgraph (wint_t __wc) __THROW; /* Test for any wide character that corresponds to a lowercase letter or is one of a locale-specific set of wide characters for which none of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true. */ extern int iswlower (wint_t __wc) __THROW; /* Test for any printing wide character. */ extern int iswprint (wint_t __wc) __THROW; /* Test for any printing wide character that is one of a locale-specific et of wide characters for which neither `iswspace' nor `iswalnum' is true. */ extern int iswpunct (wint_t __wc) __THROW; /* Test for any wide character that corresponds to a locale-specific set of wide characters for which none of `iswalnum', `iswgraph', or `iswpunct' is true. */ extern int iswspace (wint_t __wc) __THROW; /* Test for any wide character that corresponds to an uppercase letter or is one of a locale-specific set of wide character for which none of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true. */ extern int iswupper (wint_t __wc) __THROW; /* Test for any wide character that corresponds to a hexadecimal-digit character equivalent to that performed be the functions described in the previous subclause. */ extern int iswxdigit (wint_t __wc) __THROW; /* Test for any wide character that corresponds to a standard blank wide character or a locale-specific set of wide characters for which `iswalnum' is false. */ # ifdef __USE_ISOC99 extern int iswblank (wint_t __wc) __THROW; # endif /* * Extensible wide-character classification functions: 7.15.2.2. */ /* Construct value that describes a class of wide characters identified by the string argument PROPERTY. */ extern wctype_t wctype (const char *__property) __THROW; /* Determine whether the wide-character WC has the property described by DESC. */ extern int iswctype (wint_t __wc, wctype_t __desc) __THROW; /* * Wide-character case-mapping functions: 7.15.3.1. */ /* Converts an uppercase letter to the corresponding lowercase letter. */ extern wint_t towlower (wint_t __wc) __THROW; /* Converts an lowercase letter to the corresponding uppercase letter. */ extern wint_t towupper (wint_t __wc) __THROW; __END_DECLS #endif /* bits/wctype-wchar.h. */