rm integerString

include/sta/StringUtil.hh

@@ -170,9 +170,6 @@ stringPrint(string &str,
 char *
 stringPrintTmp(const char *fmt,
 	       ...)  __attribute__((format (printf, 1, 2)));
-// Caller owns returned string.
-char *
-integerString(int number);
 
 char *
 makeTmpString(size_t length);

search/CheckTiming.cc

@@ -424,9 +424,7 @@ CheckTiming::errorMsgSubst(const char *msg,
 	s++;
       }
       else if (flag == 'd') {
-	const char *obj_str = integerString(obj_count);
-	error_msg += obj_str;
-	stringDelete(obj_str);
+	error_msg += std::to_string(obj_count);
 	s++;
       }
       else

search/ReportPath.cc

@@ -814,7 +814,8 @@ ReportPath::reportEndpointOutputDelay(const PathEndClkConstrained *end)
   else {
     if (tgt_clk) {
       string clk_name = tgtClkName(end);
-      auto reason = stdstrPrint("internal path endpoint clocked by %s", clk_name.c_str());
+      auto reason = stdstrPrint("internal path endpoint clocked by %s",
+                                clk_name.c_str());
 
       reportEndpoint(pin_name, reason);
     }

util/StringUtil.cc

@@ -60,12 +60,6 @@ isDigits(const char *str)
 
 ////////////////////////////////////////////////////////////////
 
-char *
-integerString(int number)
-{
-  return stringPrint("%d", number);
-}
-
 // print for c++ strings.
 void
 stringPrint(string &str,