add license headers

util/format.h

@@ -1,4 +1,28 @@
+/*
+ * format.h
+ * Copyright (c) 2025 Christopher Herb
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
 #pragma once
+
 #include <algorithm>
 #include <cstdarg>
 #include <iomanip>
@@ -46,7 +70,8 @@ inline string float_to_string_trimmed(float value)
 
 inline string to_upper(string& str)
 {
-	std::transform(str.begin(), str.end(), str.begin(), [](unsigned char c) { return std::toupper(c); });
+	std::transform(str.begin(), str.end(), str.begin(),
+				   [](unsigned char c) { return std::toupper(c); });
 	return str;
 }
 } // namespace trnr