Improve support for platforms without stddef.h. NULL definition should now be provided by architecture port file atomport.h, which in most cases can just include stddef.h.

kernel/atomkernel.c

@@ -144,7 +144,6 @@
  */
 
 
-#include <stddef.h>
 #include "atom.h"
 
 

kernel/atomport-template.h

@@ -34,6 +34,12 @@
 /* Required number of system ticks per second (normally 100 for 10ms tick) */
 #define SYSTEM_TICKS_PER_SEC            100
 
+/**
+ * Definition of NULL.
+ * If stddef.h is available on the platform it is simplest to include it
+ * from this header, otherwise define below.
+ */
+#define NULL      ((void *)(0))
 
 /**
  * Architecture-specific types.

ports/avr/atomport.h

@@ -37,6 +37,8 @@
 /* Portable uint8_t and friends available from stdint.h on this platform */
 #include <stdint.h>
 
+/* Definition of NULL is available from stddef.h on this platform */
+#include <stddef.h>
 
 /* Required number of system ticks per second (normally 100 for 10ms tick) */
 #define SYSTEM_TICKS_PER_SEC            100

ports/stm8/atomport.h

@@ -39,6 +39,8 @@
 #include <intrins.h>
 #endif
 
+/* Definition of NULL is available from stddef.h on this platform */
+#include <stddef.h>
 
 /* Required number of system ticks per second (normally 100 for 10ms tick) */
 #define SYSTEM_TICKS_PER_SEC            100

ports/stm8/uart.c

@@ -1,5 +1,4 @@
 #include <stdio.h>
-#include <stddef.h>
 
 #include "stm8s.h"
 

tests/kern1.c

@@ -28,7 +28,6 @@
  */
 
 
-#include <stddef.h>
 #include "atom.h"
 #include "atomtests.h"
 

tests/mutex1.c

@@ -27,7 +27,6 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <stddef.h>
 #include "atom.h"
 #include "atommutex.h"
 #include "atomtests.h"

tests/mutex2.c

@@ -28,7 +28,6 @@
  */
 
 
-#include <stddef.h>
 #include "atom.h"
 #include "atommutex.h"
 #include "atomtests.h"

tests/mutex7.c

@@ -28,7 +28,6 @@
  */
 
 
-#include <stddef.h>
 #include "atom.h"
 #include "atomtests.h"
 #include "atommutex.h"

tests/queue1.c

@@ -28,7 +28,6 @@
  */
 
 
-#include <stddef.h>
 #include "atom.h"
 #include "atomqueue.h"
 #include "atomtests.h"

tests/queue4.c

@@ -28,7 +28,6 @@
  */
 
 
-#include <stddef.h>
 #include "atom.h"
 #include "atomqueue.h"
 #include "atomtests.h"

tests/sem1.c

@@ -28,7 +28,6 @@
  */
 
 
-#include <stddef.h>
 #include "atom.h"
 #include "atomsem.h"
 #include "atomtests.h"

tests/sem2.c

@@ -28,7 +28,6 @@
  */
 
 
-#include <stddef.h>
 #include "atom.h"
 #include "atomsem.h"
 #include "atomtests.h"
@@ -321,4 +320,4 @@ static void testCallback (POINTER cb_data)
          */
     }
 
-}
+}

tests/timer1.c

@@ -28,7 +28,6 @@
  */
 
 
-#include <stddef.h>
 #include "atom.h"
 #include "atomsem.h"
 #include "atomtimer.h"
@@ -246,4 +245,4 @@ static void testCallback (POINTER cb_data)
          */
     }
 
-}
+}

tests/timer3.c

@@ -28,7 +28,6 @@
  */
 
 
-#include <stddef.h>
 #include "atom.h"
 #include "atomsem.h"
 #include "atomtimer.h"
@@ -240,4 +239,4 @@ static void testCallback (POINTER cb_data)
          */
     }
 
-}
+}

tests/timer5.c

@@ -28,7 +28,6 @@
  */
 
 
-#include <stddef.h>
 #include "atom.h"
 #include "atomsem.h"
 #include "atomtimer.h"
@@ -138,4 +137,4 @@ static void testCallback (POINTER cb_data)
 {
     /* Callback was called */
     callback_ran_flag = TRUE;
-}
+}