Re: [Boost-users] Conversion from numeric type to const char*

30 Jan 2012

      2012/1/30 Claude 
...
What is the better way for convert a numeric type into a const char *?
 I use:
(boost::lexical_caststd::string(myNumericVar)).c_str()
It is a good idea?
Depends how you use the value.

  // Safe.
  puts(boost::lexical_caststd::string(myNumericVar).c_str());

  const char* s = boost::lexical_caststd::string(myNumericVar).c_str();
  // Don't do this! Here 's' is a dangling pointer; the string has already
  // been destroyed.
  puts(s);

Roman Perepelitsa.