diff --git a/src/nfagraph/ng_limex_accel.cpp b/src/nfagraph/ng_limex_accel.cpp
index 8bac753d..ac5174f3 100644
--- a/src/nfagraph/ng_limex_accel.cpp
+++ b/src/nfagraph/ng_limex_accel.cpp
@@ -321,7 +321,7 @@ struct DAccelScheme {
             bool cd_a = buildDvermMask(a.double_byte);
             bool cd_b = buildDvermMask(b.double_byte);
             if (cd_a != cd_b) {
-                return cd_a > cd_b;
+                return cd_a;
             }
         }
 
diff --git a/src/nfagraph/ng_squash.cpp b/src/nfagraph/ng_squash.cpp
index 0b51792b..b06a7af0 100644
--- a/src/nfagraph/ng_squash.cpp
+++ b/src/nfagraph/ng_squash.cpp
@@ -589,7 +589,7 @@ void getHighlanderReporters(const NGHolder &g, const NFAVertex accept,
 
         verts.insert(v);
     next_vertex:
-        continue;
+        ;
     }
 }
 
diff --git a/src/nfagraph/ng_util.h b/src/nfagraph/ng_util.h
index a2d0d9b7..34199773 100644
--- a/src/nfagraph/ng_util.h
+++ b/src/nfagraph/ng_util.h
@@ -314,7 +314,7 @@ void duplicateReport(NGHolder &g, ReportID r_old, ReportID r_new);
 
 /** Construct a reversed copy of an arbitrary NGHolder, mapping starts to
  * accepts. */
-void reverseHolder(const NGHolder &g, NGHolder &out);
+void reverseHolder(const NGHolder &g_in, NGHolder &g);
 
 /** \brief Returns the delay or ~0U if the graph cannot match with
  * the trailing literal. */
diff --git a/src/parser/logical_combination.cpp b/src/parser/logical_combination.cpp
index b75ca34f..a37f4e5f 100644
--- a/src/parser/logical_combination.cpp
+++ b/src/parser/logical_combination.cpp
@@ -284,7 +284,7 @@ void ParsedLogical::parseLogicalCombination(unsigned id, const char *logical,
                 if (logical[i] == '(') {
                     paren += 1;
                 } else if (logical[i] == ')') {
-                    if (paren <= 0) {
+                    if (paren == 0) {
                         throw LocatedParseError("Not enough left parentheses");
                     }
                     paren -= 1;
diff --git a/src/rose/rose_build_merge.cpp b/src/rose/rose_build_merge.cpp
index cddbb760..1e6c9222 100644
--- a/src/rose/rose_build_merge.cpp
+++ b/src/rose/rose_build_merge.cpp
@@ -1599,7 +1599,8 @@ void dedupeLeftfixesVariableLag(RoseBuildImpl &build) {
                 continue;
             }
         }
-        engine_groups[DedupeLeftKey(build, std::move(preds), left)].emplace_back(left);
+        auto preds_copy = std::move(preds);
+        engine_groups[DedupeLeftKey(build, preds_copy , left)].emplace_back(left);
     }
 
     /* We don't bother chunking as we expect deduping to be successful if the
diff --git a/src/util/alloc.cpp b/src/util/alloc.cpp
index 40004932..fb20f3d3 100644
--- a/src/util/alloc.cpp
+++ b/src/util/alloc.cpp
@@ -68,7 +68,7 @@ namespace ue2 {
 #endif
 
 void *aligned_malloc_internal(size_t size, size_t align) {
-    void *mem;
+    void *mem= nullptr;;
     int rv = posix_memalign(&mem, align, size);
     if (rv != 0) {
         DEBUG_PRINTF("posix_memalign returned %d when asked for %zu bytes\n",
diff --git a/src/util/graph_small_color_map.h b/src/util/graph_small_color_map.h
index 249b7153..a85f4b77 100644
--- a/src/util/graph_small_color_map.h
+++ b/src/util/graph_small_color_map.h
@@ -102,10 +102,10 @@ public:
     using category = boost::read_write_property_map_tag;
 
     small_color_map(size_t n_in, const IndexMap &index_map_in)
-        : n(n_in), index_map(index_map_in) {
-        size_t num_bytes = (n + entries_per_byte - 1) / entries_per_byte;
-        data = std::make_shared<std::vector<unsigned char>>(num_bytes);
-        fill(small_color::white);
+    : n(n_in), 
+      index_map(index_map_in),
+      data(std::make_shared<std::vector<unsigned char>>((n_in + entries_per_byte - 1) / entries_per_byte)) {
+    fill(small_color::white);
     }
 
     void fill(small_color color) {