diff options
Diffstat (limited to '3rdParty/Boost/libs/regex/src/regex_raw_buffer.cpp')
-rw-r--r-- | 3rdParty/Boost/libs/regex/src/regex_raw_buffer.cpp | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/3rdParty/Boost/libs/regex/src/regex_raw_buffer.cpp b/3rdParty/Boost/libs/regex/src/regex_raw_buffer.cpp new file mode 100644 index 0000000..7a8de80 --- /dev/null +++ b/3rdParty/Boost/libs/regex/src/regex_raw_buffer.cpp @@ -0,0 +1,70 @@ +/* + * + * Copyright (c) 2004 + * John Maddock + * + * Use, modification and distribution are subject to the + * Boost Software License, Version 1.0. (See accompanying file + * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + * + */ + + /* + * LOCATION: see http://www.boost.org for most recent version. + * FILE regex_raw_buffer.cpp + * VERSION see <boost/version.hpp> + * DESCRIPTION: Member functions for class raw_storage. + */ + + +#define BOOST_REGEX_SOURCE +#include <memory> +#include <cstring> +#include <boost/assert.hpp> +#include <boost/regex/v4/regex_raw_buffer.hpp> + +#if defined(BOOST_NO_STDC_NAMESPACE) +namespace std{ + using ::memcpy; + using ::memmove; +} +#endif + + +namespace boost{ namespace re_detail{ + +void BOOST_REGEX_CALL raw_storage::resize(size_type n) +{ + register size_type newsize = start ? last - start : 1024; + while(newsize < n) + newsize *= 2; + register size_type datasize = end - start; + // extend newsize to WORD/DWORD boundary: + newsize = (newsize + padding_mask) & ~(padding_mask); + + // allocate and copy data: + register pointer ptr = static_cast<pointer>(::operator new(newsize)); + BOOST_REGEX_NOEH_ASSERT(ptr) + std::memcpy(ptr, start, datasize); + + // get rid of old buffer: + ::operator delete(start); + + // and set up pointers: + start = ptr; + end = ptr + datasize; + last = ptr + newsize; +} + +void* BOOST_REGEX_CALL raw_storage::insert(size_type pos, size_type n) +{ + BOOST_ASSERT(pos <= size_type(end - start)); + if(size_type(last - end) < n) + resize(n + (end - start)); + register void* result = start + pos; + std::memmove(start + pos + n, start + pos, (end - start) - pos); + end += n; + return result; +} + +}} // namespaces |