From 5668ca397bfe4549317d2bcac2d9cb04f795d29c Mon Sep 17 00:00:00 2001 From: "Wladimir J. van der Laan" Date: Sun, 25 Sep 2016 19:43:10 +0200 Subject: [PATCH] Return const references from getKeys, getValues, get_str This way a needless copy can be prevented. --- include/univalue.h | 6 +++--- lib/univalue.cpp | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/include/univalue.h b/include/univalue.h index e48b905..e8ce283 100644 --- a/include/univalue.h +++ b/include/univalue.h @@ -142,10 +142,10 @@ class UniValue { public: // Strict type-specific getters, these throw std::runtime_error if the // value is of unexpected type - std::vector getKeys() const; - std::vector getValues() const; + const std::vector& getKeys() const; + const std::vector& getValues() const; bool get_bool() const; - std::string get_str() const; + const std::string& get_str() const; int get_int() const; int64_t get_int64() const; double get_real() const; diff --git a/lib/univalue.cpp b/lib/univalue.cpp index 1f8cee6..5a2860c 100644 --- a/lib/univalue.cpp +++ b/lib/univalue.cpp @@ -283,14 +283,14 @@ const UniValue& find_value(const UniValue& obj, const std::string& name) return NullUniValue; } -std::vector UniValue::getKeys() const +const std::vector& UniValue::getKeys() const { if (typ != VOBJ) throw std::runtime_error("JSON value is not an object as expected"); return keys; } -std::vector UniValue::getValues() const +const std::vector& UniValue::getValues() const { if (typ != VOBJ && typ != VARR) throw std::runtime_error("JSON value is not an object or array as expected"); @@ -304,7 +304,7 @@ bool UniValue::get_bool() const return getBool(); } -std::string UniValue::get_str() const +const std::string& UniValue::get_str() const { if (typ != VSTR) throw std::runtime_error("JSON value is not a string as expected");