Fix project structure and add make file

makefile

@@ -0,0 +1,20 @@
+
+#OBJS specifies which files to compile as part of the project
+OBJS = $(wildcard src/*.cpp) 
+
+#CC specifies which compiler we're using
+CC = g++
+
+#COMPILER_FLAGS specifies the additional compilation options we're using
+# -w suppresses all warnings
+COMPILER_FLAGS = -w
+
+#LINKER_FLAGS specifies the libraries we're linking against
+LINKER_FLAGS = 
+
+#OBJ_NAME specifies the name of our exectuable
+OBJ_NAME = cobalt
+
+#This is the target that compiles our executable
+all : $(OBJS)
+	$(CC) $(OBJS) $(COMPILER_FLAGS) $(LINKER_FLAGS) -o $(OBJ_NAME)

src/lexer.cpp

@@ -1,7 +1,7 @@
 #include <stdio.h>
 #include <iostream>
 #include <fstream>
-#include "lexer.h"
+#include "../include/lexer.h"
 
 char c;
 FILE* input_file;

src/main.cpp

@@ -2,7 +2,7 @@
 #include <iostream>
 #include <vector>
 
-#include "lexer.h"
+#include "../include/lexer.h"
 
 int main(int argc, char *argv[]) {
     if (argc > 1) {

src/parser.cpp

@@ -1,7 +1,7 @@
 #include <stdio.h>
 #include <iostream>
 
-#include "parser.h"
+#include "../include/parser.h"
 
 Parser::Parser(std::string input_file) {