1// Locale support -*- C++ -*- 2 3// Copyright (C) 2000, 2002 Free Software Foundation, Inc. 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the 7// terms of the GNU General Public License as published by the 8// Free Software Foundation; either version 2, or (at your option) 9// any later version. 10 11// This library is distributed in the hope that it will be useful, 12// but WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14// GNU General Public License for more details. 15 16// You should have received a copy of the GNU General Public License along 17// with this library; see the file COPYING. If not, write to the Free 18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 19// USA. 20 21// As a special exception, you may use this file as part of a free software 22// library without restriction. Specifically, if other files instantiate 23// templates or use macros or inline functions from this file, or you compile 24// this file and link it with other files to produce an executable, this 25// file does not by itself cause the resulting executable to be covered by 26// the GNU General Public License. This exception does not however 27// invalidate any other reasons why the executable file might be covered by 28// the GNU General Public License. 29 30/** @file ctype_inline.h 31 * This is an internal header file, included by other library headers. 32 * You should not attempt to use it directly. 33 */ 34 35// 36// ISO C++ 14882: 22.1 Locales 37// 38 39// ctype bits to be inlined go here. Non-inlinable (ie virtual do_*) 40// functions go in ctype.cc 41 42_GLIBCXX_BEGIN_NAMESPACE(std) 43 44 bool 45 ctype<char>:: 46 is(mask __m, char __c) const 47 { return _M_table[static_cast<unsigned char>(__c)] & __m; } 48 49 const char* 50 ctype<char>:: 51 is(const char* __low, const char* __high, mask* __vec) const 52 { 53 const int __bitmasksize = sizeof(mask) * 8; 54 for (;__low < __high; ++__vec, ++__low) 55 { 56 mask __m = _M_table[static_cast<unsigned char>(*__low)]; 57 int __i = 0; // Lowest bitmask value from ctype_base. 58 while (__i < __bitmasksize && !(__m & static_cast<mask>(1 << __i))) 59 ++__i; 60 *__vec = static_cast<mask>(1 << __i); 61 } 62 return __high; 63 } 64 65 const char* 66 ctype<char>:: 67 scan_is(mask __m, const char* __low, const char* __high) const 68 { 69 while (__low < __high 70 && !(_M_table[static_cast<unsigned char>(*__low)] & __m)) 71 ++__low; 72 return __low; 73 } 74 75 const char* 76 ctype<char>:: 77 scan_not(mask __m, const char* __low, const char* __high) const 78 { 79 while (__low < __high 80 && (_M_table[static_cast<unsigned char>(*__low)] & __m) != 0) 81 ++__low; 82 return __low; 83 } 84 85_GLIBCXX_END_NAMESPACE 86