folly/gen/Parallel-inl.h: trivial -Wsign-compare fix

[folly.git] / folly / gen / ParallelMap-inl.h

diff --git a/folly/gen/ParallelMap-inl.h b/folly/gen/ParallelMap-inl.h
index d2f766127ff07089d5611dd7bb76ab4f40cc7646..bded4431d3b9d09e6e5a356ce043c4e0c0b2b5ec 100644 (file)
--- a/folly/gen/ParallelMap-inl.h
+++ b/folly/gen/ParallelMap-inl.h
@@ -75,7 +75,7 @@ class PMap : public Operator<PMap<Predicate>> {
         : pred_(pred),
           pipeline_(nThreads, nThreads) {
         workers_.reserve(nThreads);
-        for (int i = 0; i < nThreads; i++) {
+        for (size_t i = 0; i < nThreads; i++) {
           workers_.push_back(std::thread([this] { this->predApplier(); }));
         }
       }