XS: revert "performing pointer subtraction with a null pointer has un…

…defined behavior" without warning
Moddable-OpenSource · Dec 22, 2022 · 4e23805 · 4e23805
1 parent 50567ce
commit 4e23805
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/xs/sources/xsMapSet.c b/xs/sources/xsMapSet.c
@@ -907,7 +907,8 @@ txU4 fxSumEntry(txMachine* the, txSlot* slot)
 	}
 	else {
 		if (XS_REFERENCE_KIND == kind) {
-			sum = slot->value.reference - the->firstHeap; //(txSlot*)NULL;
+			txSlot* base = C_NULL;
+			sum = slot->value.reference - base;
 		}
 		else if (XS_INTEGER_KIND == kind) {
 			fxToNumber(the, slot);