diff options
Diffstat (limited to 'contrib/libstdc++/config/os/generic/ctype_inline.h')
| -rw-r--r-- | contrib/libstdc++/config/os/generic/ctype_inline.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/contrib/libstdc++/config/os/generic/ctype_inline.h b/contrib/libstdc++/config/os/generic/ctype_inline.h new file mode 100644 index 0000000..be43c47 --- /dev/null +++ b/contrib/libstdc++/config/os/generic/ctype_inline.h @@ -0,0 +1,161 @@ +// Locale support -*- C++ -*- + +// Copyright (C) 2000, 2003 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 2, or (at your option) +// any later version. + +// This 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 General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING. If not, write to the Free +// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, +// USA. + +// As a special exception, you may use this file as part of a free software +// library without restriction. Specifically, if other files instantiate +// templates or use macros or inline functions from this file, or you compile +// this file and link it with other files to produce an executable, this +// file does not by itself cause the resulting executable to be covered by +// the GNU General Public License. This exception does not however +// invalidate any other reasons why the executable file might be covered by +// the GNU General Public License. + +// +// ISO C++ 14882: 22.1 Locales +// + +// ctype bits to be inlined go here. Non-inlinable (ie virtual do_*) +// functions go in ctype.cc + +// The following definitions are portable, but insanely slow. If one +// cares at all about performance, then specialized ctype +// functionality should be added for the native os in question: see +// the config/os/bits/ctype_*.h files. + +// Constructing a synthetic "C" table should be seriously considered... + + bool + ctype<char>:: + is(mask __m, char __c) const + { + if (_M_table) + return _M_table[static_cast<unsigned char>(__c)] & __m; + else + { + bool __ret = true; + const int __bitmasksize = 11; + int __bitcur = 0; // Lowest bitmask in ctype_base == 0 + for (;__ret && __bitcur < __bitmasksize; ++__bitcur) + { + mask __bit = static_cast<mask>(1 << __bitcur); + if (__m & __bit) + { + bool __testis; + switch (__bit) + { + case space: + __testis = isspace(__c); + break; + case print: + __testis = isprint(__c); + break; + case cntrl: + __testis = iscntrl(__c); + break; + case upper: + __testis = isupper(__c); + break; + case lower: + __testis = islower(__c); + break; + case alpha: + __testis = isalpha(__c); + break; + case digit: + __testis = isdigit(__c); + break; + case punct: + __testis = ispunct(__c); + break; + case xdigit: + __testis = isxdigit(__c); + break; + case alnum: + __testis = isalnum(__c); + break; + case graph: + __testis = isgraph(__c); + break; + default: + __testis = false; + break; + } + __ret &= __testis; + } + } + return __ret; + } + } + + const char* + ctype<char>:: + is(const char* __low, const char* __high, mask* __vec) const + { + if (_M_table) + while (__low < __high) + *__vec++ = _M_table[static_cast<unsigned char>(*__low++)]; + else + { + // Highest bitmask in ctype_base == 10. + const int __bitmasksize = 11; + for (;__low < __high; ++__vec, ++__low) + { + mask __m = 0; + // Lowest bitmask in ctype_base == 0 + int __i = 0; + for (;__i < __bitmasksize; ++__i) + { + mask __bit = static_cast<mask>(1 << __i); + if (this->is(__bit, *__low)) + __m |= __bit; + } + *__vec = __m; + } + } + return __high; + } + + const char* + ctype<char>:: + scan_is(mask __m, const char* __low, const char* __high) const + { + if (_M_table) + while (__low < __high + && !(_M_table[static_cast<unsigned char>(*__low)] & __m)) + ++__low; + else + while (__low < __high && !this->is(__m, *__low)) + ++__low; + return __low; + } + + const char* + ctype<char>:: + scan_not(mask __m, const char* __low, const char* __high) const + { + if (_M_table) + while (__low < __high + && (_M_table[static_cast<unsigned char>(*__low)] & __m) != 0) + ++__low; + else + while (__low < __high && this->is(__m, *__low) != 0) + ++__low; + return __low; + } |
