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-rw-r--r--src/pugixml.cpp19
1 files changed, 6 insertions, 13 deletions
diff --git a/src/pugixml.cpp b/src/pugixml.cpp
index 0a83c81..b284d3b 100644
--- a/src/pugixml.cpp
+++ b/src/pugixml.cpp
@@ -4751,16 +4751,10 @@ namespace
{
assert(begin <= end);
- if (begin != end)
- {
- _buffer = duplicate_string(begin, static_cast<size_t>(end - begin));
- _uses_heap = true;
- }
- else
- {
- _buffer = PUGIXML_TEXT("");
- _uses_heap = false;
- }
+ bool empty = (begin == end);
+
+ _buffer = empty ? PUGIXML_TEXT("") : duplicate_string(begin, static_cast<size_t>(end - begin));
+ _uses_heap = !empty;
}
xpath_string(const xpath_string& o)
@@ -4788,11 +4782,10 @@ namespace
// skip empty sources
if (!*o._buffer) return;
- // fast append for empty target and constant source
- if (!*_buffer && !o._uses_heap)
+ // fast append for constant empty target and constant source
+ if (!*_buffer && !_uses_heap && !o._uses_heap)
{
_buffer = o._buffer;
- _uses_heap = false;
}
else
{