From 31ab69904294bcbc0f38e4d401fcca620f7c6f61 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 29 Aug 2021 17:16:04 +0300
Subject: [PATCH] Add a shortcut for transforming a container in-place

---
 source/core/algorithm.h  | 6 ++++++
 source/strings/utils.cpp | 6 +++---
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/source/core/algorithm.h b/source/core/algorithm.h
index b79114e..268bf7b 100644
--- a/source/core/algorithm.h
+++ b/source/core/algorithm.h
@@ -171,6 +171,12 @@ inline void stable_sort_member(Container &cont, T Container::value_type::*mp)
 	stable_sort(cont, MemberCompare<typename Container::value_type, T>(mp));
 }
 
+template<typename Container, typename Predicate>
+inline void transform(Container &cont, Predicate pred)
+{
+	transform(cont.begin(), cont.end(), cont.begin(), pred);
+}
+
 } // namespace Msp
 
 #endif
diff --git a/source/strings/utils.cpp b/source/strings/utils.cpp
index 6b659d0..eb2142d 100644
--- a/source/strings/utils.cpp
+++ b/source/strings/utils.cpp
@@ -1,7 +1,7 @@
-#include <algorithm>
 #include <list>
 #include <stdexcept>
 #include <cctype>
+#include <msp/core/algorithm.h>
 #include "utils.h"
 
 using namespace std;
@@ -63,14 +63,14 @@ int strcasecmp(const string &s1, const string &s2)
 string tolower(const string &str)
 {
 	string result(str);
-	transform(result.begin(), result.end(), result.begin(), [](char c){ return std::tolower(c); });
+	transform(result, [](char c){ return std::tolower(c); });
 	return result;
 }
 
 string toupper(const string &str)
 {
 	string result(str);
-	transform(result.begin(), result.end(), result.begin(), [](char c){ return std::toupper(c); });
+	transform(result, [](char c){ return std::toupper(c); });
 	return result;
 }
 
-- 
2.43.0