Use std::to_chars to make a string out of a 64 bit number.

1 files changed, 3 insertions, 2 deletions

diff --git a/eval/src/vespa/eval/instruction/generic_peek.cpp b/eval/src/vespa/eval/instruction/generic_peek.cpp
index ccca0b4e458..ea6e53e5505 100644
--- a/eval/src/vespa/eval/instruction/generic_peek.cpp
+++ b/eval/src/vespa/eval/instruction/generic_peek.cpp
@@ -3,7 +3,6 @@
 #include "generic_peek.h"
 #include <vespa/eval/eval/nested_loop.h>
 #include <vespa/eval/eval/wrap_param.h>
-#include <vespa/vespalib/util/overload.h>
 #include <vespa/vespalib/util/stash.h>
 #include <vespa/vespalib/util/typify.h>
 #include <vespa/vespalib/util/visit_ranges.h>
@@ -252,10 +251,12 @@ struct SparsePlan {
     SparseState make_state(const Getter &get_child_value) const {
         SmallVector<Handle> handles;
         SmallVector<string_id> view_addr;
+        char buf[24];
         for (const auto & dim : lookup_specs) {
             if (dim.has_child()) {
                 int64_t child_value = get_child_value(dim.get_child_idx());
-                handles.emplace_back(vespalib::make_string("%" PRId64, child_value));
+                auto res = std::to_chars(buf, buf + sizeof(buf), child_value, 10);
+                handles.emplace_back(vespalib::stringref(buf, res.ptr - buf));
                 view_addr.push_back(handles.back().id());
             } else {
                 view_addr.push_back(dim.get_label_name());