diff --git a/main/main.cpp b/main/main.cpp
index 8b085d4..d812c4f 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -1,5 +1,6 @@
 #include "../src/SharedMemory.h"
 
 int main() {
-    return test();
+    shared_memory_init();
+    //return main();
 }
\ No newline at end of file
diff --git a/src/SharedMemory.cpp b/src/SharedMemory.cpp
index 367b123..551e997 100644
--- a/src/SharedMemory.cpp
+++ b/src/SharedMemory.cpp
@@ -1,3 +1,5 @@
+#include <cstdlib>
+#include <cstdio>
 #include "SharedMemory.h"
 
 //Shared-Memory-Segment erstellen oder öffnen – shmget()
@@ -7,12 +9,12 @@ void shared_memory_init(){
 
 //Ein Shared-Memory-Segment abfragen, ändern oder löschen – shmctl()
 void delet_shared_memory(){
-    int shmctl(memory_id, IPC_RMID, 0);
+    memory_id = shmctl(memory_id, IPC_RMID, 0);
 }
 
 //Shared-Memory-Segment an einen Prozess anbinden (attach) – shmat()
-void attach_process(char *myProcess){
-    if(( myProcess = shmat( memmory_id, (char *)0, 0 )) < (char *)0 ){
+void attach_process(void *myProcess){
+    if(( myProcess = shmat( memory_id, (char *)0, 0 )) < (char *)0 ){
         perror("Fehler beim Ankoppeln des gemeinsamen Speicher Segments");
         exit(-1);
     }
diff --git a/src/SharedMemory.h b/src/SharedMemory.h
index 471cfe5..bf09c50 100644
--- a/src/SharedMemory.h
+++ b/src/SharedMemory.h
@@ -6,7 +6,7 @@
 #include <sys/shm.h>
 
 //ID-Speicherbereich
-#define int memory_id
+extern int memory_id;
 //Größe des Speicherbereichs hier 8MB (8000)
 #define SHMMAXSIZE 8000
 
@@ -18,7 +18,7 @@ void shared_memory_init();
 void delet_shared_memory();
 
 //Shared-Memory-Segment an einen Prozess anbinden (attach) – shmat()
-void attach_process(char *myProcess);
+void attach_process(void *myProcess);
 
 //Ein Shared-Memory-Segment loslösen – shmdt()
 void release_memory();
diff --git a/test/test_demo.cpp b/test/test_demo.cpp
index cc7e234..23ec771 100644
--- a/test/test_demo.cpp
+++ b/test/test_demo.cpp
@@ -3,4 +3,5 @@
 
 TEST_CASE("Demo test") {
     REQUIRE(test() == 42);
-}
\ No newline at end of file
+}
+