feat: multi-user system, bug fixes, security & performance fixes, and more

2026-03-14 13:28:46 +01:00
parent 576ad34f95
commit 261b536041
389 changed files with 231853 additions and 591 deletions
@@ -0,0 +1,241 @@
+// Components for manipulating non-owning sequences of characters -*- C++ -*-
+
+// Copyright (C) 2013-2024 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 3, 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file include/bits/string_view.tcc
+ *  This is an internal header file, included by other library headers.
+ *  Do not attempt to use it directly. @headername{string_view}
+ */
+
+//
+// N3762 basic_string_view library
+//
+
+#ifndef _GLIBCXX_STRING_VIEW_TCC
+#define _GLIBCXX_STRING_VIEW_TCC 1
+
+#pragma GCC system_header
+
+#if __cplusplus >= 201703L
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+  template<typename _CharT, typename _Traits>
+    constexpr typename basic_string_view<_CharT, _Traits>::size_type
+    basic_string_view<_CharT, _Traits>::
+    find(const _CharT* __str, size_type __pos, size_type __n) const noexcept
+    {
+      __glibcxx_requires_string_len(__str, __n);
+
+      if (__n == 0)
+	return __pos <= _M_len ? __pos : npos;
+      if (__pos >= _M_len)
+	return npos;
+
+      const _CharT __elem0 = __str[0];
+      const _CharT* __first = _M_str + __pos;
+      const _CharT* const __last = _M_str + _M_len;
+      size_type __len = _M_len - __pos;
+
+      while (__len >= __n)
+	{
+	  // Find the first occurrence of __elem0:
+	  __first = traits_type::find(__first, __len - __n + 1, __elem0);
+	  if (!__first)
+	    return npos;
+	  // Compare the full strings from the first occurrence of __elem0.
+	  // We already know that __first[0] == __s[0] but compare them again
+	  // anyway because __s is probably aligned, which helps memcmp.
+	  if (traits_type::compare(__first, __str, __n) == 0)
+	    return __first - _M_str;
+	  __len = __last - ++__first;
+	}
+      return npos;
+    }
+
+  template<typename _CharT, typename _Traits>
+    constexpr typename basic_string_view<_CharT, _Traits>::size_type
+    basic_string_view<_CharT, _Traits>::
+    find(_CharT __c, size_type __pos) const noexcept
+    {
+      size_type __ret = npos;
+      if (__pos < this->_M_len)
+	{
+	  const size_type __n = this->_M_len - __pos;
+	  const _CharT* __p = traits_type::find(this->_M_str + __pos, __n, __c);
+	  if (__p)
+	    __ret = __p - this->_M_str;
+	}
+      return __ret;
+    }
+
+  template<typename _CharT, typename _Traits>
+    constexpr typename basic_string_view<_CharT, _Traits>::size_type
+    basic_string_view<_CharT, _Traits>::
+    rfind(const _CharT* __str, size_type __pos, size_type __n) const noexcept
+    {
+      __glibcxx_requires_string_len(__str, __n);
+
+      if (__n <= this->_M_len)
+	{
+	  __pos = std::min(size_type(this->_M_len - __n), __pos);
+	  do
+	    {
+	      if (traits_type::compare(this->_M_str + __pos, __str, __n) == 0)
+		return __pos;
+	    }
+	  while (__pos-- > 0);
+	}
+      return npos;
+    }
+
+  template<typename _CharT, typename _Traits>
+    constexpr typename basic_string_view<_CharT, _Traits>::size_type
+    basic_string_view<_CharT, _Traits>::
+    rfind(_CharT __c, size_type __pos) const noexcept
+    {
+      size_type __size = this->_M_len;
+      if (__size > 0)
+	{
+	  if (--__size > __pos)
+	    __size = __pos;
+	  for (++__size; __size-- > 0; )
+	    if (traits_type::eq(this->_M_str[__size], __c))
+	      return __size;
+	}
+      return npos;
+    }
+
+  template<typename _CharT, typename _Traits>
+    constexpr typename basic_string_view<_CharT, _Traits>::size_type
+    basic_string_view<_CharT, _Traits>::
+    find_first_of(const _CharT* __str, size_type __pos,
+		  size_type __n) const noexcept
+    {
+      __glibcxx_requires_string_len(__str, __n);
+      for (; __n && __pos < this->_M_len; ++__pos)
+	{
+	  const _CharT* __p = traits_type::find(__str, __n,
+						this->_M_str[__pos]);
+	  if (__p)
+	    return __pos;
+	}
+      return npos;
+    }
+
+  template<typename _CharT, typename _Traits>
+    constexpr typename basic_string_view<_CharT, _Traits>::size_type
+    basic_string_view<_CharT, _Traits>::
+    find_last_of(const _CharT* __str, size_type __pos,
+		 size_type __n) const noexcept
+    {
+      __glibcxx_requires_string_len(__str, __n);
+      size_type __size = this->size();
+      if (__size && __n)
+	{
+	  if (--__size > __pos)
+	    __size = __pos;
+	  do
+	    {
+	      if (traits_type::find(__str, __n, this->_M_str[__size]))
+		return __size;
+	    }
+	  while (__size-- != 0);
+	}
+      return npos;
+    }
+
+  template<typename _CharT, typename _Traits>
+    constexpr typename basic_string_view<_CharT, _Traits>::size_type
+    basic_string_view<_CharT, _Traits>::
+    find_first_not_of(const _CharT* __str, size_type __pos,
+		      size_type __n) const noexcept
+    {
+      __glibcxx_requires_string_len(__str, __n);
+      for (; __pos < this->_M_len; ++__pos)
+	if (!traits_type::find(__str, __n, this->_M_str[__pos]))
+	  return __pos;
+      return npos;
+    }
+
+  template<typename _CharT, typename _Traits>
+    constexpr typename basic_string_view<_CharT, _Traits>::size_type
+    basic_string_view<_CharT, _Traits>::
+    find_first_not_of(_CharT __c, size_type __pos) const noexcept
+    {
+      for (; __pos < this->_M_len; ++__pos)
+	if (!traits_type::eq(this->_M_str[__pos], __c))
+	  return __pos;
+      return npos;
+    }
+
+  template<typename _CharT, typename _Traits>
+    constexpr typename basic_string_view<_CharT, _Traits>::size_type
+    basic_string_view<_CharT, _Traits>::
+    find_last_not_of(const _CharT* __str, size_type __pos,
+		     size_type __n) const noexcept
+    {
+      __glibcxx_requires_string_len(__str, __n);
+      size_type __size = this->_M_len;
+      if (__size)
+	{
+	  if (--__size > __pos)
+	    __size = __pos;
+	  do
+	    {
+	      if (!traits_type::find(__str, __n, this->_M_str[__size]))
+		return __size;
+	    }
+	  while (__size--);
+	}
+      return npos;
+    }
+
+  template<typename _CharT, typename _Traits>
+    constexpr typename basic_string_view<_CharT, _Traits>::size_type
+    basic_string_view<_CharT, _Traits>::
+    find_last_not_of(_CharT __c, size_type __pos) const noexcept
+    {
+      size_type __size = this->_M_len;
+      if (__size)
+	{
+	  if (--__size > __pos)
+	    __size = __pos;
+	  do
+	    {
+	      if (!traits_type::eq(this->_M_str[__size], __c))
+		return __size;
+	    }
+	  while (__size--);
+	}
+      return npos;
+    }
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+#endif // __cplusplus <= 201402L
+
+#endif // _GLIBCXX_STRING_VIEW_TCC