added tests as prepared by oliver

test/val/pointer1.c

@@ -0,0 +1,134 @@
+/*
+  !!DESCRIPTION!! Pointer tests
+  !!ORIGIN!!      SDCC regression tests
+  !!LICENCE!!     GPL, read COPYING.GPL
+*/
+
+#include <stdio.h>
+#include <limits.h>
+
+unsigned char success = 0;
+unsigned char failures = 0;
+unsigned char dummy = 0;
+
+#ifdef SUPPORT_BIT_TYPES
+bit bit0 = 0;
+#endif
+unsigned int aint0 = 0;
+unsigned int aint1 = 0;
+unsigned char achar0 = 0;
+unsigned char achar1 = 0;
+unsigned char *acharP = 0;
+
+char buff[10];
+
+void
+done ()
+{
+  dummy++;
+}
+
+void
+f1 (unsigned char *ucP)
+{
+  if (ucP == 0)
+    {
+      failures++;
+      return;
+    }
+
+  if (*ucP)
+    failures++;
+}
+
+void
+f2 (unsigned int *uiP)
+{
+  if (uiP == 0)
+    {
+      failures++;
+      return;
+    }
+
+  if (*uiP)
+    failures++;
+}
+
+unsigned char *
+f3 (void)
+{
+  return &achar0;
+}
+
+void f4(unsigned char *ucP, unsigned char uc)
+{
+  if(!ucP) {
+    failures++;
+    return;
+  }
+
+  if(*ucP != uc)
+    failures++;
+}
+
+void init_array(char start_value)
+{
+  unsigned char c;
+
+  for(c=0; c<sizeof(buff); c++)
+    buff[c] = start_value++;
+}
+
+void check_array(char base_value)
+{
+  unsigned char c;
+
+  for(c=0; c<sizeof(buff); c++)
+    if(buff[c] != (base_value+c))
+      failures++;
+}
+
+void index_by_pointer(unsigned char *index, unsigned char expected_value)
+{
+  if(buff[*index] != expected_value)
+    failures++;
+}
+
+int
+main (void)
+{
+  init_array(4);
+  check_array(4);
+
+  if(buff[achar0 + 7] != 4+7)
+    failures++;
+
+  dummy = buff[achar0];
+
+  if(dummy != 4)
+    failures++;
+
+  if(dummy != (buff[achar0+1] -1))
+    failures++;
+
+  index_by_pointer(&dummy, 8);
+
+  f1 (&achar0);
+  f2 (&aint0);
+
+  acharP = f3 ();
+  if ((acharP == 0) || (*acharP))
+    failures++;
+  achar0 = 42;
+  if(*acharP != 42)
+    failures++;
+
+  achar0 = 5;
+  f4(&achar0, achar0);
+
+  success = failures;
+  done ();
+  printf("failures: %d\n",failures);
+
+  return failures;
+}