Pavel Labath f7e7fdd5cf Fix DataExtractor::PeekData for zero length peeks ... Summary: The function was returning the null pointer for peeks of size zero, which seems like a sensible thing to do, but is actually pretty easy to get bitten by that if you are extracting a variable length field which happens to be of zero length and then doing pointer arithmetic on that (which SymbolFileDWARF does, and ended up crashing in case of empty DW_AT_location). This changes the function to return a null pointer only when it gets queried for data which is outside of the range of the extractor, which is more c++-y, as one can still do reasonable things with pointers to data of size zero (think, end() iterators). I also add a test and fix some signedness warnings in the existing data extractor tests. Reviewers: clayborg Subscribers: lldb-commits Differential Revision: https://reviews.llvm.org/D22755 llvm-svn: 276734		2016-07-26 08:11:57 +00:00
..
CMakeLists.txt	Handle bit fields on big-endian systems correctly	2016-04-14 14:32:57 +00:00
DataExtractorTest.cpp	Fix DataExtractor::PeekData for zero length peeks	2016-07-26 08:11:57 +00:00
ScalarTest.cpp	Avoid an assertion failure when a bit field is extracted from a value of the same size.	2016-05-19 13:51:20 +00:00