Author: kwk Date: Tue Oct 8 08:43:29 2019 New Revision: 374069 URL: http://llvm.org/viewvc/llvm-project?rev=374069&view=rev Log: Simplify LZMA decoding by using ArrayRef::take_back
Summary: Follow-up for D66791#inline-616303 Reviewers: labath Subscribers: lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D68647 Modified: lldb/trunk/source/Host/common/LZMA.cpp Modified: lldb/trunk/source/Host/common/LZMA.cpp URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Host/common/LZMA.cpp?rev=374069&r1=374068&r2=374069&view=diff ============================================================================== --- lldb/trunk/source/Host/common/LZMA.cpp (original) +++ lldb/trunk/source/Host/common/LZMA.cpp Tue Oct 8 08:43:29 2019 @@ -76,7 +76,7 @@ getUncompressedSize(llvm::ArrayRef<uint8 // Decode xz footer. lzma_ret xzerr = lzma_stream_footer_decode( - &opts, InputBuffer.data() + InputBuffer.size() - LZMA_STREAM_HEADER_SIZE); + &opts, InputBuffer.take_back(LZMA_STREAM_HEADER_SIZE).data()); if (xzerr != LZMA_OK) { return llvm::createStringError(llvm::inconvertibleErrorCode(), "lzma_stream_footer_decode()=%s", @@ -94,11 +94,11 @@ getUncompressedSize(llvm::ArrayRef<uint8 lzma_index *xzindex; uint64_t memlimit(UINT64_MAX); size_t inpos = 0; - xzerr = - lzma_index_buffer_decode(&xzindex, &memlimit, nullptr, - InputBuffer.data() + InputBuffer.size() - - LZMA_STREAM_HEADER_SIZE - opts.backward_size, - &inpos, InputBuffer.size()); + xzerr = lzma_index_buffer_decode( + &xzindex, &memlimit, nullptr, + InputBuffer.take_back(LZMA_STREAM_HEADER_SIZE + opts.backward_size) + .data(), + &inpos, InputBuffer.size()); if (xzerr != LZMA_OK) { return llvm::createStringError(llvm::inconvertibleErrorCode(), "lzma_index_buffer_decode()=%s", _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits