Question

I’m getting errors in xcode saying:

No viable overload '='

I am trying to iterate through some code and it doesn’t work.

Below is the code:

string query;
query = "select name from A;";
sqlite3_stmt *sqlstmt;
if(SQLITE_OK != sqlite3_prepare16_v2(db, query.c_str(),0, &sqlstmt,0)){
   sqlite3_close(db);
   return -1;
}
while(sqlite3_step(sqlstmt) == SQLITE_ROW){
  string name;
  name = sqlite3_column_text16(sqlstmt, 1);  //<--errors
  cout << name << endl;
}

Edit: I added the query

Answer 1

sqlite3_column_text16() returns a void const *, not a string. Try this:

string name(static_cast<char const *>(sqlite3_column_text16(sqlstmt, 1)));

Note that the *16 family of functions use UTF-16, so this is unlikely to work with standard strings; you’ll have to use wide strings, or the non-16 variant:

string name(static_cast<char const *>(sqlite3_column_text(sqlstmt, 1)));