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-rw-r--r--vespalib/src/tests/coro/generator/generator_bench.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/vespalib/src/tests/coro/generator/generator_bench.cpp b/vespalib/src/tests/coro/generator/generator_bench.cpp
index 7671a48b2e6..78590b1cfaf 100644
--- a/vespalib/src/tests/coro/generator/generator_bench.cpp
+++ b/vespalib/src/tests/coro/generator/generator_bench.cpp
@@ -49,7 +49,7 @@ size_t calc_sum_direct(size_t first, size_t last) {
return calc_sum(ValueRange(first, last));
}
-Generator<size_t> gen_values(size_t first, size_t last) {
+Generator<const size_t &> gen_values(size_t first, size_t last) {
for (size_t i = first; i < last; ++i) {
co_yield i;
}