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| author | Lenny Maiorani <lenny@colorado.edu> | 2013-01-08 01:08:52 +0000 |
|---|---|---|
| committer | Lenny Maiorani <lenny@colorado.edu> | 2013-01-08 01:08:52 +0000 |
| commit | c09b4c00aaab25676ca903a4e137ac19ccb7d637 (patch) | |
| tree | 9c75af3eeacaafa9097e74e5d96c25127fa57e35 /lib/Support | |
| parent | 0fecdfb7c44aee85e78e0ba6e9547b702bc64c4a (diff) | |
| download | external_llvm-c09b4c00aaab25676ca903a4e137ac19ccb7d637.zip external_llvm-c09b4c00aaab25676ca903a4e137ac19ccb7d637.tar.gz external_llvm-c09b4c00aaab25676ca903a4e137ac19ccb7d637.tar.bz2 | |
Split changeset_ty using iterators instead of loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171829 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support')
| -rw-r--r-- | lib/Support/DeltaAlgorithm.cpp | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/lib/Support/DeltaAlgorithm.cpp b/lib/Support/DeltaAlgorithm.cpp index 9e52874..a1e3311 100644 --- a/lib/Support/DeltaAlgorithm.cpp +++ b/lib/Support/DeltaAlgorithm.cpp @@ -27,13 +27,15 @@ bool DeltaAlgorithm::GetTestResult(const changeset_ty &Changes) { void DeltaAlgorithm::Split(const changeset_ty &S, changesetlist_ty &Res) { // FIXME: Allow clients to provide heuristics for improved splitting. + // Get the iterator to the middle. + unsigned N = S.size() / 2; + changeset_ty::iterator middle(S.begin()); + std::advance(middle, N); + + // Create each vector using the middle as the split. + changeset_ty LHS(S.begin(), middle); + changeset_ty RHS(middle, S.end()); - // FIXME: This is really slow. - changeset_ty LHS, RHS; - unsigned idx = 0, N = S.size() / 2; - for (changeset_ty::const_iterator it = S.begin(), - ie = S.end(); it != ie; ++it, ++idx) - ((idx < N) ? LHS : RHS).insert(*it); if (!LHS.empty()) Res.push_back(LHS); if (!RHS.empty()) |