univalue: Avoid std::string copies

1 files changed, 6 insertions, 6 deletions

diff --git a/src/univalue/lib/univalue.cpp b/src/univalue/lib/univalue.cpp
index 12a434dd0e..d1d4f18d26 100644
--- a/src/univalue/lib/univalue.cpp
+++ b/src/univalue/lib/univalue.cpp
@@ -44,15 +44,15 @@ static bool validNumStr(const std::string& s)
     return (tt == JTOK_NUMBER);
 }
 
-void UniValue::setNumStr(const std::string& val_)
+void UniValue::setNumStr(std::string str)
 {
-    if (!validNumStr(val_)) {
-        throw std::runtime_error{"The string '" + val_ + "' is not a valid JSON number"};
+    if (!validNumStr(str)) {
+        throw std::runtime_error{"The string '" + str + "' is not a valid JSON number"};
     }
 
     clear();
     typ = VNUM;
-    val = val_;
+    val = std::move(str);
 }
 
 void UniValue::setInt(uint64_t val_)
@@ -82,11 +82,11 @@ void UniValue::setFloat(double val_)
     return setNumStr(oss.str());
 }
 
-void UniValue::setStr(const std::string& val_)
+void UniValue::setStr(std::string str)
 {
     clear();
     typ = VSTR;
-    val = val_;
+    val = std::move(str);
 }
 
 void UniValue::setArray()