improve makefile

Makefile

@@ -46,17 +46,18 @@ pgo-generate: $(PGO_OBJ)
 
 pgo-profile: pgo-generate
 	for i in {1..$(PGO_ITERATIONS)}; do \
-		dd if=/dev/urandom of=./pgo-test bs=1024 count=$(PGO_DATASET_SIZE) >> /dev/null 2>&1; \
+		dd if=/dev/urandom of=/tmp/$(PROJ)-pgo-test bs=1024 count=$(PGO_DATASET_SIZE) >> /dev/null 2>&1; \
 		printf "\rIteration $$i / $(PGO_ITERATIONS)"; \
-		./pgo-generate ./pgo-test > ./pgo-output; \
+		./pgo-generate /tmp/$(PROJ)-pgo-test > /tmp/$(PROJ)-pgo-output; \
 	done
 	@echo ""
-	rm ./pgo-test
-	rm ./pgo-output
+	rm /tmp/$(PROJ)-pgo-test
+	rm /tmp/$(PROJ)-pgo-output
 	rm pgo-generate
 
 
-pgo-use: PROF_FLAGS = -fprofile-use -lgcov
+pgo-use: PROF_FLAGS = -fprofile-use
+pgo-use: LDFLAGS+= -lgcov
 pgo-use: $(PGO_OBJ)
 	$(CXX) $^ $(CXXFLAGS) $(PROF_FLAGS) -o $@ $(LDFLAGS) $(PROF_FLAGS)
 

src/hex.cpp

@@ -20,7 +20,7 @@ const static constexpr char ascii_map[256] = {
   '.', '.', '.', '.', '.', '.', '.', '.', '.', '.', '.', '.', '.', '.', '.', '.', 
 };
 
-constexpr const char* hex_map[256] = {
+constexpr const static char* hex_map[256] = {
 	"00", "01", "02", "03", "04", "05", "06", "07", "08", "09", "0a", "0b", "0c", "0d", "0e", "0f",
 	"10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "1a", "1b", "1c", "1d", "1e", "1f",
 	"20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "2a", "2b", "2c", "2d", "2e", "2f",
@@ -59,7 +59,7 @@ inline void hex02(std::uint8_t byte, char buffer[2])
 	buffer[1] =hex_map[byte][1];
 }
 
-template<int N>
+template<std::size_t N>
 inline __attribute__((always_inline)) void print_exact(const char (&ar)[N])
 {
 	fwrite(ar, N, 1, stdout);