6 files changed, 45 insertions, 15 deletions
diff --git a/src/core/index.h b/src/core/index.h
index 66b2540..e791805 100644
--- a/src/core/index.h
+++ b/src/core/index.h
@@ -3,6 +3,21 @@
 
 #include "index_types.h"
 
+#if JH_INDEX_MAX >= SIZE_MAX
+#define JH_index_cannot_allocate_more(type_size, counter) \
+      (\
+         (((size_t) (counter)) == SIZE_MAX) \
+         || ((counter) == JH_INDEX_MAX) \
+         || ((((size_t) (counter)) + 1) > (SIZE_MAX / (type_size))) \
+      )
+#else
+#define JH_index_cannot_allocate_more(type_size, counter) \
+      (\
+         ((counter) == JH_INDEX_MAX) \
+         || ((((size_t) (counter)) + 1) > (SIZE_MAX / (type_size))) \
+      )
+#endif
+
 /*
  * Returns a random JH_index.
  */
diff --git a/src/knowledge/knowledge_learn_markov_sequence.c b/src/knowledge/knowledge_learn_markov_sequence.c
index 74e29a7..ddb828d 100644
--- a/src/knowledge/knowledge_learn_markov_sequence.c
+++ b/src/knowledge/knowledge_learn_markov_sequence.c
@@ -2,6 +2,8 @@
 #include <string.h>
 #include <stdint.h> /* defines SIZE_MAX */
 
+#include "../core/index.h"
+
 #include "../sequence/sequence.h"
 
 #include "../error/error.h"
@@ -45,7 +47,14 @@ static int reallocate_sequences_list
 {
    JH_index ** new_sequences;
 
-   if ((SIZE_MAX / sizeof(JH_index *)) < (size_t) k->sequences_length)
+   if
+   (
+      JH_index_cannot_allocate_more
+      (
+         sizeof(JH_index *),
+         k->sequences_length
+      )
+   )
    {
       JH_S_ERROR
       (
@@ -88,7 +97,14 @@ static int reallocate_sequences_sorted_list
 {
    JH_index * new_sequences_sorted;
 
-   if ((SIZE_MAX / sizeof(JH_index)) < (size_t) k->sequences_length)
+   if
+   (
+      JH_index_cannot_allocate_more
+      (
+         sizeof(JH_index),
+         k->sequences_length
+      )
+   )
    {
       JH_S_ERROR
       (
diff --git a/src/knowledge/knowledge_learn_sequence.c b/src/knowledge/knowledge_learn_sequence.c
index 9502f2e..d52f4d0 100644
--- a/src/knowledge/knowledge_learn_sequence.c
+++ b/src/knowledge/knowledge_learn_sequence.c
@@ -45,7 +45,6 @@ static int add_swt_sequence
    const JH_index sequence [const restrict static 1],
    const size_t index,
    const size_t sequence_length,
-   const JH_index markov_order,
    JH_index buffer [const restrict static 1],
    const JH_index buffer_length,
    FILE io [const restrict static 1]
@@ -132,7 +131,6 @@ static int add_tws_sequence
    const JH_index sequence [const restrict static 1],
    const size_t index,
    const size_t sequence_length,
-   const JH_index markov_order,
    JH_index buffer [const restrict static 1],
    const JH_index buffer_length,
    FILE io [const restrict static 1]
@@ -227,7 +225,6 @@ int JH_knowledge_learn_sequence
             sequence,
             i,
             sequence_length,
-            markov_order,
             buffer,
             buffer_length,
             io
@@ -246,7 +243,6 @@ int JH_knowledge_learn_sequence
             sequence,
             i,
             sequence_length,
-            markov_order,
             buffer,
             buffer_length,
             io
diff --git a/src/knowledge/knowledge_learn_word.c b/src/knowledge/knowledge_learn_word.c
index 9320f10..c84c9b6 100644
--- a/src/knowledge/knowledge_learn_word.c
+++ b/src/knowledge/knowledge_learn_word.c
@@ -2,6 +2,8 @@
 #include <string.h>
 #include <stdint.h> /* defines SIZE_MAX */
 
+#include "../core/index.h"
+
 #include "../error/error.h"
 
 #include "knowledge.h"
@@ -103,8 +105,11 @@ static int reallocate_words_list
 
    if
    (
-      (SIZE_MAX / sizeof(struct JH_knowledge_word))
-      < (size_t) k->words_length
+      JH_index_cannot_allocate_more
+      (
+         sizeof(struct JH_knowledge_word),
+         k->words_length
+      )
    )
    {
       JH_S_ERROR
diff --git a/src/knowledge/knowledge_swt_tws_modifications.c b/src/knowledge/knowledge_swt_tws_modifications.c
index cc8a938..dfb4705 100644
--- a/src/knowledge/knowledge_swt_tws_modifications.c
+++ b/src/knowledge/knowledge_swt_tws_modifications.c
@@ -10,7 +10,6 @@ static int add_target
 (
    struct JH_knowledge_sequence_data sd [const restrict static 1],
    const JH_index target_id,
-   const JH_index s_index,
    const JH_index t_index,
    FILE io [const restrict static 1]
 )
@@ -208,7 +207,6 @@ int JH_knowledge_strengthen_swt
          (
             &(k->words[word_id].swt.sequences_ref[s_index]),
             target_id,
-            s_index,
             t_index,
             io
          ) < 0
@@ -308,7 +306,6 @@ int JH_knowledge_strengthen_tws
          (
             &(k->words[word_id].tws.sequences_ref[s_index]),
             target_id,
-            s_index,
             t_index,
             io
          ) < 0
diff --git a/src/server/server_new_connection.c b/src/server/server_new_connection.c
index 23a2770..e08ef56 100644
--- a/src/server/server_new_connection.c
+++ b/src/server/server_new_connection.c
@@ -7,6 +7,8 @@
 #include <stdint.h>
 #include <unistd.h>
 
+#include "../core/index.h"
+
 #include "../parameters/parameters.h"
 
 #include "server.h"
@@ -63,11 +65,10 @@ static int get_new_thread (struct JH_server server [const restrict static 1])
 
    if
    (
-      (server->workers.threads_capacity == JH_INDEX_MAX)
-      ||
+      JH_index_cannot_allocate_more
       (
-         (size_t) (server->workers.threads_capacity + 1)
-         > (SIZE_MAX / sizeof(struct JH_server_thread_data))
+         sizeof(struct JH_server_thread_data),
+         server->workers.threads_capacity
       )
    )
    {