Initial Commit

Makefile

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+all:
+		clang++ -std=c++11 main.cpp factorial.cpp hello.cpp -o hello

Makefile-2

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+all: hello
+
+hello: main.o factorial.o hello.o
+	clang++ main.o factorial.o hello.o -o hello
+
+main.o: main.cpp
+	clang++ -c main.cpp
+
+factorial.o: factorial.cpp
+	clang++ -c factorial.cpp
+
+hello.o: hello.cpp
+	clang++ -c hello.cpp
+
+clean:
+	rm *o hello

Makefile-3

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+# I am a comment, and I want to stay that the variable CC will be the compiler to use
+CC=clang++
+
+# Hey CFLAGS will be the options I'll pass to the compiler 
+CFLAGS=-c -Wall
+
+all: hello
+
+hello: main.o factorial.o hello.o
+	$(CC) main.o factorial.o hello.o -o hello
+
+main.o: main.cpp
+	$(CC) $(CFLAGS) main.cpp
+
+factorial.o: factorial.cpp
+	$(CC) $(CFLAGS) factorial.cpp
+
+hello.o: hello.cpp
+	$(CC) $(CFLAGS) hello.cpp
+
+clean:
+	rm *o
+	rm hello

README.md

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+# Make Tutorial
+
+Just a simple 3 example tutorial on how to use Make files.
+
+Source: https://opensource.com/article/18/8/what-how-makefile

factorial.cpp

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+#include "functions.h"
+
+
+int factorial(int n){
+	if(n!=1){
+		return(n * factorial(n-1));
+	}
+	else return 1;
+}

functions.h

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+void print_hello();
+int factorial(int n);

hello.cpp

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+#include <iostream>
+#include "functions.h"
+
+void print_hello(){
+	std::cout << "hello World";
+}

main.cpp

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+#include <iostream>
+#include "functions.h"
+
+int main(){
+	print_hello();
+	std::cout << std::endl;
+	std::cout << "The factorial of 5 is " << factorial(5) << std::endl;
+	return 0;
+}