close #30 added overwritable help command parameter and fixed some compiler issues (some of them only appeared when compiling with optimization)

test/unittest/shellmatta_utils/test_utils_clearInput.cpp

@@ -4,6 +4,8 @@
 
 static shellmatta_retCode_t writeFct(const char* data, uint32_t length)
 {
+    (void)data;
+    (void)length;
     return SHELLMATTA_OK;
 }
 

test/unittest/shellmatta_utils/test_utils_eraseLine.cpp

@@ -9,7 +9,7 @@ static uint32_t write_length;
 static shellmatta_retCode_t writeFct(const char* data, uint32_t length)
 {
     write_callCnt ++;
-    strncpy(write_data, data, length);
+    memcpy(write_data, data, length);
     write_length = length;
     return SHELLMATTA_OK;
 }

test/unittest/shellmatta_utils/test_utils_restoreCursorPos.cpp

@@ -9,7 +9,7 @@ static uint32_t write_length;
 static shellmatta_retCode_t writeFct(const char* data, uint32_t length)
 {
     write_callCnt ++;
-    strncpy(write_data, data, length);
+    memcpy(write_data, data, length);
     write_length = length;
     return SHELLMATTA_OK;
 }

test/unittest/shellmatta_utils/test_utils_saveCursorPos.cpp

@@ -3,13 +3,13 @@
 #include <string.h>
 
 static uint32_t write_callCnt = 0u;
-static char write_data[10];
+static char write_data[10u];
 static uint32_t write_length;
 
 static shellmatta_retCode_t writeFct(const char* data, uint32_t length)
 {
     write_callCnt ++;
-    strncpy(write_data, data, length);
+    memcpy(write_data, data, length);
     write_length = length;
     return SHELLMATTA_OK;
 }

test/unittest/shellmatta_utils/test_utils_terminateInput.cpp

@@ -9,7 +9,7 @@ static uint32_t write_idx;
 static shellmatta_retCode_t writeFct(const char* data, uint32_t length)
 {
     write_callCnt ++;
-    strncpy(&write_data[write_idx], data, length);
+    memcpy(&write_data[write_idx], data, length);
     write_idx += length;
     return SHELLMATTA_OK;
 }