Format source files

makefile

@@ -4,7 +4,7 @@ CFLAGS = -std=c++17 -Wall -g -Wextra
 CPPS = $(wildcard test/*.cpp)
 EXES = $(patsubst %.cpp, %.out, $(CPPS))
 
-.PHONY: all clean rebuild check
+.PHONY: all clean rebuild check format
 
 all: $(EXES)
 
@@ -19,5 +19,11 @@ EXESQUOTED = $(patsubst %, "%", $(EXES))
 check: all
 	./execute-all.sh
 
+format:
+	find src/ -name *.cpp -exec clang-format -i {} \;
+	find src/ -name *.hpp -exec clang-format -i {} \;
+	find test/ -name *.cpp -exec clang-format -i {} \;
+	find test/ -name *.hpp -exec clang-format -i {} \;
+
 %.out: %.cpp
 	$(CC) $(CFLAGS) $< -o $@