WIP adhoc test looks ok

PrintMutation.h

@@ -1,56 +1,40 @@
 #pragma once
 
 #include "VersionedMap.h"
+#include <cassert>
 #include <ctype.h>
 #include <inttypes.h>
 #include <stdio.h>
 
+inline void printBinary(const weaselab::VersionedMap::Key k) {
+  for (int i = 0; i < k.len; ++i) {
+    auto c = k.p[i];
+    if (isprint(c)) {
+      printf("%c", c);
+    } else {
+      printf("x%02x", c);
+    }
+  }
+}
+
 inline void
 printMutation(const weaselab::VersionedMap::Iterator::VersionedMutation &m) {
   switch (m.type) {
   case weaselab::VersionedMap::Set:
     printf("set ");
-    for (int i = 0; i < m.param1Len; ++i) {
-      auto c = m.param1[i];
-      if (isprint(c)) {
-        printf("%c", c);
-      } else {
-        printf("x%02x", c);
-      }
-    }
+    printBinary({m.param1, m.param1Len});
     printf(" -> '");
-    for (int i = 0; i < m.param2Len; ++i) {
-      auto c = m.param2[i];
-      if (isprint(c)) {
-        printf("%c", c);
-      } else {
-        printf("x%02x", c);
-      }
-    }
+    printBinary({m.param2, m.param2Len});
     printf("' @ %" PRId64 "\n", m.notModifiedSince);
     break;
   case weaselab::VersionedMap::Clear:
     printf("clear [");
-    for (int i = 0; i < m.param1Len; ++i) {
-      auto c = m.param1[i];
-      if (isprint(c)) {
-        printf("%c", c);
-      } else {
-        printf("x%02x", c);
-      }
-    }
+    printBinary({m.param1, m.param1Len});
     printf(", ");
-    for (int i = 0; i < m.param2Len; ++i) {
-      auto c = m.param2[i];
-      if (isprint(c)) {
-        printf("%c", c);
-      } else {
-        printf("x%02x", c);
-      }
-    }
+    printBinary({m.param2, m.param2Len});
     printf(") @ %" PRId64 "\n", m.notModifiedSince);
     break;
-  default:                   // GCOVR_EXCL_LINE
-    __builtin_unreachable(); // GCOVR_EXCL_LINE
+  default:         // GCOVR_EXCL_LINE
+    assert(false); // GCOVR_EXCL_LINE
   }
 }