add some comments to code snippets

diff --git a/personal/_posts/2022-04-11-provenance-exposed.md b/personal/_posts/2022-04-11-provenance-exposed.md
index 56b7203e9d9a4a07aeb68291d50214313f2a7237..5265df60efbcfa4da7b7f33fed1498eed98d0b83 100644 (file)
--- a/personal/_posts/2022-04-11-provenance-exposed.md
+++ b/personal/_posts/2022-04-11-provenance-exposed.md
@@ -78,7 +78,7 @@ static int uwu(int *restrict x, int *restrict y) {
 
   int *y2 = y-1;
   uintptr_t y2addr = (uintptr_t)y2;
-  int *ptr = (int*)y2addr;
+  int *ptr = (int*)y2addr; // <-- using y2addr
   *ptr = 1;
 
   return *x;
@@ -104,7 +104,7 @@ static int uwu(int *restrict x, int *restrict y) {
   int *ptr = (int*)y2addr;
   *ptr = 1;
 
-  return 0;
+  return 0; // <-- hard-coded return value
 }
 
 int main() {