cleanup some warnings in tests

examples/bench.cc

@@ -195,14 +195,14 @@ Timer _fill_random(vector<T> &v, HT &hash)
 }
 
 // --------------------------------------------------------------------------
-void out(const char* test, int64_t cnt, const Timer &t, bool final = false)
+void out(const char* test, int64_t cnt, const Timer &t, bool  = false)
 {
     printf("%s,time,%u,%s,%f\n", test, (unsigned int)cnt, program_slug, 
            (float)((double)t.elapsed().count() / 1000));
 }
 
 // --------------------------------------------------------------------------
-void outmem(const char* test, int64_t cnt, uint64_t mem, bool final = false)
+void outmem(const char*, int64_t cnt, uint64_t mem, bool final = false)
 {
     static uint64_t max_mem = 0;
     static uint64_t max_keys = 0;

examples/knucleotide.cc

@@ -113,7 +113,7 @@ struct Key
         for(size_t i = 0; i != size; ++i, data >>= 2)
             tmp += cfg.to_char[data & 3ull];
         std::reverse(tmp.begin(), tmp.end());
-        return std::move(tmp);
+        return tmp;
     }
 
     bool operator== (const Key& in) const {

tests/container_memory_test.cc

@@ -118,7 +118,7 @@ DecomposeValueImpl(int, F&& f, Arg&& arg) {
 }
 
 template <class F, class Arg>
-const char* DecomposeValueImpl(char, F&& f, Arg&& arg) {
+const char* DecomposeValueImpl(char, F&& , Arg&& ) {
   return "not decomposable";
 }
 
@@ -152,7 +152,7 @@ DecomposePairImpl(int, F&& f, Args&&... args) {
 }
 
 template <class F, class... Args>
-const char* DecomposePairImpl(char, F&& f, Args&&... args) {
+const char* DecomposePairImpl(char, F&& , Args&&... ) {
   return "not decomposable";
 }