On 30 January 2011 20:40, Enrico Weigelt wrote: > * Kalle Olavi Niemitalo <kon@xxxxxx> wrote: > >> Although the second parameter is const void *, the language still >> allows the function to modify the object to which that points, >> provided that the object was not defined as const. > > Doesn't that defeat the whole purpose of const ? No. http://www.gotw.ca/gotw/081.htm > BTW: let me add another question: > > > const std::string str; > > void one(const std::string s) > { > str = s; > } > > void two(const char* s) > { > one(s); > } > > void three() > { > two("hello world"); > } > > > What actually happens here under the hood ? Is this reliable ? > (lifetime of the string object) It won't compile because you assign to a const, so I don't understand the question.
