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Fixed compilation for gcc 4.2.1 (apparently not all gcc versions properly implement strict aliasing warning...)

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git-svn-id: http://pugixml.googlecode.com/svn/trunk@813 99668b35-9821-0410-8761-19e4c4f06640
This commit is contained in:
arseny.kapoulkine 2011-07-24 03:19:31 +00:00
parent 27c5c5e1cb
commit 414ad96d7a
1 changed files with 7 additions and 8 deletions
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15
src/pugixml.cpp
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@ -3175,7 +3175,7 @@ namespace
}
#ifndef PUGIXML_NO_STL
struct xml_stream_chunk
template <typename T> struct xml_stream_chunk
{
static xml_stream_chunk* create()
{
@ -3204,22 +3204,21 @@ namespace
xml_stream_chunk* next;
size_t size;
// so that we can use this for both wchar_t and char data (char -> wchar_t casting is prohibited by strict aliasing)
wchar_t data[xml_memory_page_size / sizeof(wchar_t)];
T data[xml_memory_page_size / sizeof(T)];
};
template <typename T> xml_parse_status load_stream_data_noseek(std::basic_istream<T>& stream, void** out_buffer, size_t* out_size)
{
buffer_holder chunks(0, xml_stream_chunk::destroy);
buffer_holder chunks(0, xml_stream_chunk<T>::destroy);
// read file to a chunk list
size_t total = 0;
xml_stream_chunk* last = 0;
xml_stream_chunk<T>* last = 0;
while (!stream.eof())
{
// allocate new chunk
xml_stream_chunk* chunk = xml_stream_chunk::create();
xml_stream_chunk<T>* chunk = xml_stream_chunk<T>::create();
if (!chunk) return status_out_of_memory;
// append chunk to list
@ -3227,7 +3226,7 @@ namespace
else chunks.data = last = chunk;
// read data to chunk
stream.read(reinterpret_cast<T*>(chunk->data), static_cast<std::streamsize>(sizeof(chunk->data) / sizeof(T)));
stream.read(chunk->data, static_cast<std::streamsize>(sizeof(chunk->data) / sizeof(T)));
chunk->size = static_cast<size_t>(stream.gcount()) * sizeof(T);
// read may set failbit | eofbit in case gcount() is less than read length, so check for other I/O errors
@ -3244,7 +3243,7 @@ namespace
char* write = buffer;
for (xml_stream_chunk* chunk = static_cast<xml_stream_chunk*>(chunks.data); chunk; chunk = chunk->next)
for (xml_stream_chunk<T>* chunk = static_cast<xml_stream_chunk<T>*>(chunks.data); chunk; chunk = chunk->next)
{
assert(write + chunk->size <= buffer + total);
memcpy(write, chunk->data, chunk->size);