diff --git a/communication_techniques/include/asm_cache_comm.h b/communication_techniques/include/asm_cache_comm.h
index c2027c4..8abfbdd 100644
--- a/communication_techniques/include/asm_cache_comm.h
+++ b/communication_techniques/include/asm_cache_comm.h
@@ -12,7 +12,7 @@
 
 struct communication_channel
 {
-	uintptr_t buf[2 * BUF_SIZE / sizeof(uintptr_t)] __attribute__ ((aligned (CACHE_LINE_SIZE)));
+	void *buf[2 * BUF_SIZE / sizeof(void *)] __attribute__ ((aligned (CACHE_LINE_SIZE)));
 	int  state __attribute__ ((aligned (CACHE_LINE_SIZE)));
 	int  idx __attribute__ ((aligned (CACHE_LINE_SIZE)));
 };
@@ -31,7 +31,7 @@ extern struct communication_assoc assoc_root;
 __BEGIN_DECLS
 
 struct communication_assoc *create_comm_assoc(void);
-static inline void send(uintptr_t value) {
+static inline void send(void *addr) {
  	asm volatile("mov    %%gs:channel@NTPOFF + 2 *" toString(BUF_SIZE) " + " toString(CACHE_LINE_SIZE) ", %%eax\n\t"
 							 "mov    %0, %%gs:channel@NTPOFF(%%eax)\n\t"
 							 "addl   $4, %%eax\n\t"
@@ -42,7 +42,7 @@ static inline void send(uintptr_t value) {
 							 "jz     swap_buffer\n\t"
 							 "2:"
 							 :
-							 : "r"(value)
+							 : "r"(addr)
 							 : "%eax");
 }
 
diff --git a/communication_techniques/include/common_comm.h b/communication_techniques/include/common_comm.h
index 06935c4..2f5d17b 100644
--- a/communication_techniques/include/common_comm.h
+++ b/communication_techniques/include/common_comm.h
@@ -16,7 +16,7 @@ __BEGIN_DECLS
 void add_sender(void);
 void remove_sender(void);
 volatile int *init_comm(void);
-void reception(void (*)(uintptr_t));
+void reception(void (*)(void *));
 extern int swap_buffer;
 void wait_initialization(void);
 void discover_new_producers(void);
diff --git a/communication_techniques/include/pipe_comm.h b/communication_techniques/include/pipe_comm.h
index 5873fb6..c068ef1 100644
--- a/communication_techniques/include/pipe_comm.h
+++ b/communication_techniques/include/pipe_comm.h
@@ -26,8 +26,8 @@ extern __thread int pipefd[];
 extern struct communication_assoc assoc_root;
 
 struct communication_assoc *create_comm_assoc(void);
-static inline void send(uintptr_t value) {
-	write(pipefd[WRITE_IDX], &value, sizeof(uintptr_t));
+static inline void send(void *addr) {
+	write(pipefd[WRITE_IDX], &addr, sizeof(void *));
 }
 
 __END_DECLS
diff --git a/communication_techniques/include/shared_mem_comm.h b/communication_techniques/include/shared_mem_comm.h
index 0807f39..81a4cea 100644
--- a/communication_techniques/include/shared_mem_comm.h
+++ b/communication_techniques/include/shared_mem_comm.h
@@ -7,14 +7,14 @@
 #include <common_comm.h>
 
 #define SHARED_SPACE_SIZE (2 * BUF_SIZE)
-#define SHARED_SPACE_UINTPTR (SHARED_SPACE_SIZE / sizeof(uintptr_t))
+#define SHARED_SPACE_VOIDPTR (SHARED_SPACE_SIZE / sizeof(void *))
 
 struct communication_assoc
 {
 	struct communication_assoc *next;
 	struct communication_assoc *prev;
 	pthread_t tid;
-	uintptr_t *shared_space;
+	void **shared_space;
 	volatile int *cons_idx;
 	volatile int *prod_idx;
 };
@@ -23,15 +23,15 @@ extern struct communication_assoc assoc_root;
 
 __BEGIN_DECLS
 
-extern __thread uintptr_t *shared_space;
+extern __thread void **shared_space;
 extern __thread volatile int prod_idx;
 extern __thread volatile int cons_idx;
 
 struct communication_assoc *create_comm_assoc(void);
-static inline void send(uintptr_t value) {
-	while ((prod_idx + 1) % SHARED_SPACE_UINTPTR == cons_idx);
-	shared_space[prod_idx] = value;
-	prod_idx = (prod_idx + 1) % SHARED_SPACE_UINTPTR;
+static inline void send(void *addr) {
+	while ((prod_idx + 1) % SHARED_SPACE_VOIDPTR == cons_idx);
+	shared_space[prod_idx] = addr;
+	prod_idx = (prod_idx + 1) % SHARED_SPACE_VOIDPTR;
 }
 
 __END_DECLS
diff --git a/communication_techniques/include/shared_mem_opt_comm.h b/communication_techniques/include/shared_mem_opt_comm.h
index 027fbab..0211040 100644
--- a/communication_techniques/include/shared_mem_opt_comm.h
+++ b/communication_techniques/include/shared_mem_opt_comm.h
@@ -7,14 +7,14 @@
 #include <common_comm.h>
 
 #define SHARED_SPACE_SIZE (2 * BUF_SIZE)
-#define SHARED_SPACE_UINTPTR (SHARED_SPACE_SIZE / sizeof(uintptr_t))
+#define SHARED_SPACE_VOIDPTR (SHARED_SPACE_SIZE / sizeof(void *))
 
 struct communication_assoc
 {
 	struct communication_assoc *next;
 	struct communication_assoc *prev;
 	pthread_t tid;
-	uintptr_t *shared_space;
+	void **shared_space;
 	volatile int *cons_idx;
 	volatile int *prod_idx;
 };
@@ -23,21 +23,21 @@ extern struct communication_assoc assoc_root;
 
 __BEGIN_DECLS
 
-extern __thread uintptr_t *shared_space;
+extern __thread void **shared_space;
 extern __thread volatile int prod_idx;
 extern __thread volatile int cons_idx;
 
 struct communication_assoc *create_comm_assoc(void);
-static inline void send(uintptr_t value) {
+static inline void send(void *addr) {
 	static __thread int local_cons_idx = 0;
 
-	if (likely(((prod_idx + 1) % SHARED_SPACE_UINTPTR) == local_cons_idx))
+	if (likely(((prod_idx + 1) % SHARED_SPACE_VOIDPTR) == local_cons_idx))
 	{
-		while (((prod_idx + 1) % SHARED_SPACE_UINTPTR) == cons_idx);
+		while (((prod_idx + 1) % SHARED_SPACE_VOIDPTR) == cons_idx);
 		local_cons_idx = cons_idx;
 	}
-	shared_space[prod_idx] = value;
-	prod_idx = (prod_idx + 1) % SHARED_SPACE_UINTPTR;
+	shared_space[prod_idx] = addr;
+	prod_idx = (prod_idx + 1) % SHARED_SPACE_VOIDPTR;
 }
 
 __END_DECLS
diff --git a/communication_techniques/src/asm_cache.c b/communication_techniques/src/asm_cache.c
index 2f48c2e..f4fffb9 100644
--- a/communication_techniques/src/asm_cache.c
+++ b/communication_techniques/src/asm_cache.c
@@ -35,7 +35,7 @@ void _swap_buffer()
 		: : "m"(dstr));
 }
 
-void reception(void (*on_receive)(uintptr_t))
+void reception(void (*on_receive)(void *))
 {
 	wait_initialization();
 	/* printf("Activate the consumer...\n"); */
@@ -60,8 +60,8 @@ void reception(void (*on_receive)(uintptr_t))
 				 * the first one (this is done by the modulo)
 				 */
 				int i = cur->receiver_idx;
-				int n = cur->receiver_idx + (BUF_SIZE / sizeof(uintptr_t));
-				cur->receiver_idx = n % ((2 * BUF_SIZE) / sizeof(uintptr_t));
+				int n = cur->receiver_idx + (BUF_SIZE / sizeof(void *));
+				cur->receiver_idx = n % ((2 * BUF_SIZE) / sizeof(void *));
 				for(; i<n; i++)
 					on_receive(channel->buf[i]);
 				channel->state = 0;
diff --git a/communication_techniques/src/main.c b/communication_techniques/src/main.c
index 3c0ba16..cda2943 100644
--- a/communication_techniques/src/main.c
+++ b/communication_techniques/src/main.c
@@ -147,7 +147,8 @@ int analyse_options(int argc, char *argv[])
 
 void *producer(void *cont_ptr_void)
 {
-	int i, j, k;
+	int i, j;
+	uintptr_t k;
 	volatile int *cont;
 
 	cont = *((volatile int **) cont_ptr_void);
@@ -173,7 +174,7 @@ void *producer(void *cont_ptr_void)
 		for(i = 0; i < nb_cache_lines; i++) {
 			//printf("[%p] Send a new CACHE_LINE\n", (void *) pthread_self());
 			for(j = 0; j < (CACHE_LINE_SIZE / sizeof(uintptr_t)); j++)
-				send(k++);
+				send(&k);
 		}
 		print_results();
 	}
@@ -192,7 +193,7 @@ void *producer(void *cont_ptr_void)
 	return NULL;
 }
 
-void onMessage(uintptr_t val)
+void onMessage(void *val)
 {
 	//printf("Receive value: %p\n", (void *) val);
 }
diff --git a/communication_techniques/src/pipe.c b/communication_techniques/src/pipe.c
index da70d00..d41b091 100644
--- a/communication_techniques/src/pipe.c
+++ b/communication_techniques/src/pipe.c
@@ -21,7 +21,7 @@ struct communication_assoc *create_comm_assoc(void)
 	return assoc;
 }
 
-void reception(void (*on_receive)(uintptr_t))
+void reception(void (*on_receive)(void *))
 {
 	wait_initialization();
 	/* printf("Activate the consumer...\n"); */
@@ -35,10 +35,10 @@ void reception(void (*on_receive)(uintptr_t))
 		{
 			int i;
 
-			for(i = 0; i < BUF_SIZE / sizeof(uintptr_t); i++)
+			for(i = 0; i < BUF_SIZE / sizeof(void *); i++)
 			{
-				uintptr_t tmp;
-				read(cur->pipefd[READ_IDX], &tmp, sizeof(uintptr_t));
+				void *tmp;
+				read(cur->pipefd[READ_IDX], &tmp, sizeof(void *));
 				on_receive(tmp);
 			}
 			cur = cur->next;
diff --git a/communication_techniques/src/shared_mem.c b/communication_techniques/src/shared_mem.c
index b6b1d84..9e16140 100644
--- a/communication_techniques/src/shared_mem.c
+++ b/communication_techniques/src/shared_mem.c
@@ -8,7 +8,7 @@
 #include <specific_comm.h>
 
 
-__thread uintptr_t *shared_space;
+__thread void **shared_space;
 __thread volatile int cons_idx = 0;
 __thread volatile int prod_idx = 0;
 
@@ -16,7 +16,7 @@ struct communication_assoc *create_comm_assoc(void)
 {
 	struct communication_assoc *assoc;
 
-	shared_space = (uintptr_t *) malloc(SHARED_SPACE_SIZE);
+	shared_space = (void **) malloc(SHARED_SPACE_SIZE);
 	assoc = (struct communication_assoc *) malloc(sizeof(struct communication_assoc));
 	assoc->tid = pthread_self();
 	assoc->shared_space = shared_space;
@@ -25,7 +25,7 @@ struct communication_assoc *create_comm_assoc(void)
 	return assoc;
 }
 
-void reception(void (*on_receive)(uintptr_t))
+void reception(void (*on_receive)(void *))
 {
 	wait_initialization();
 	/* printf("Activate the consumer...\n"); */
@@ -39,9 +39,9 @@ void reception(void (*on_receive)(uintptr_t))
 		{
 			int cons_idx;
 
-			for(cons_idx = *cur->cons_idx; cons_idx != *cur->prod_idx; cons_idx = (cons_idx + 1) % SHARED_SPACE_UINTPTR, *cur->cons_idx = cons_idx)
+			for(cons_idx = *cur->cons_idx; cons_idx != *cur->prod_idx; cons_idx = (cons_idx + 1) % SHARED_SPACE_VOIDPTR, *cur->cons_idx = cons_idx)
 			{
-				uintptr_t tmp;
+				void *tmp;
 				tmp = cur->shared_space[cons_idx];
 				on_receive(tmp);
 			}
diff --git a/communication_techniques/src/shared_mem_opt.c b/communication_techniques/src/shared_mem_opt.c
index 5846e78..4b26f34 100644
--- a/communication_techniques/src/shared_mem_opt.c
+++ b/communication_techniques/src/shared_mem_opt.c
@@ -8,7 +8,7 @@
 #include <specific_comm.h>
 
 
-__thread uintptr_t *shared_space;
+__thread void **shared_space;
 __thread volatile int cons_idx = 0;
 __thread volatile int prod_idx = 0;
 
@@ -16,7 +16,7 @@ struct communication_assoc *create_comm_assoc(void)
 {
 	struct communication_assoc *assoc;
 
-	shared_space = (uintptr_t *) malloc(SHARED_SPACE_SIZE);
+	shared_space = (void **) malloc(SHARED_SPACE_SIZE);
 	assoc = (struct communication_assoc *) malloc(sizeof(struct communication_assoc));
 	assoc->tid = pthread_self();
 	assoc->shared_space = shared_space;
@@ -25,7 +25,7 @@ struct communication_assoc *create_comm_assoc(void)
 	return assoc;
 }
 
-void reception(void (*on_receive)(uintptr_t))
+void reception(void (*on_receive)(void *))
 {
 	wait_initialization();
 	/* printf("Activate the consumer...\n"); */
@@ -43,9 +43,9 @@ void reception(void (*on_receive)(uintptr_t))
 			do
 			{
 				prod_idx = *cur->prod_idx;
-				for(; cons_idx != prod_idx; cons_idx = (cons_idx + 1) % SHARED_SPACE_UINTPTR)
+				for(; cons_idx != prod_idx; cons_idx = (cons_idx + 1) % SHARED_SPACE_VOIDPTR)
 				{
-					uintptr_t tmp;
+					void *tmp;
 					tmp = cur->shared_space[cons_idx];
 					on_receive(tmp);
 				}