[libcxx-commits] [libcxx] [libc++] Optimize filebuf::seekoff (PR #211788)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions ,cpp -- libcxx/include/fstream libcxx/test/benchmarks/streams/fstream.bench.cpp libcxx/test/std/input.output/file.streams/fstreams/filebuf.virtuals/seekoff.pass.cpp --diff_from_common_commit
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``````````diff
diff --git a/libcxx/include/fstream b/libcxx/include/fstream
index 099c025e1..4a1479624 100644
--- a/libcxx/include/fstream
+++ b/libcxx/include/fstream
@@ -1023,7 +1023,6 @@ basic_filebuf<_CharT, _Traits>::seekoff(off_type __off, ios_base::seekdir __way,
     return __success_pos;
   }
   case ios::cur: {
-
     // If the new position is within the buffer we can just move the current read pointer
     if ((__cm_ & ios::in) &&
         (__off < 0 ? this->gptr() - this->eback() <= __off : this->egptr() - this->gptr() >= __off)) {

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https://github.com/llvm/llvm-project/pull/211788