Обсуждение: minor improvement to libpq++ ...
Hi y'all, to unify the framework of the look an feeling of c++ programs relying on libpq++ I propose to migrate to a consistant use of 'string' to represent any text rather than 'char *'. Especially I refer to PgConnection::Exec(char *), ExecCommandOk() and ExecTuplesOk(). It is very easy to switch over to the use of strings: in the headerfiles only (char * --> string) has to be changed and in the corresponding c++ files, the call to the c-functions becomes e.g. PQexec(pgConn, query) --> PQexec(pgConn, query.c_str()). The old style call via 'char *' would still be possible, since 'char *' is automatically convertet to 'string'. Although I could easily change this for myself, I think it would be appropriate to include it in an upcoming release since it definitely results in a improved and more consistent handling of libpq++. Please cc: any comments or replys to 'Andreas.Hauck@earthling.net'. Cheers, Andreas ////////////////////////////////////////////////////////////////////////////// . . . . . . ... Andreas Hauck ____ : Inst. fuer Theor. Physik __nn__ _______ ________ ____ :_:____U Auf der Morgenstelle 14 :____:-:_____:-:______:-:___|-:_______) 72076 Tuebingen __oo__oo_oo___oo_oo____oo_oo_oo_ooOOOOoo|\___________________________________ phone : +49 (0) 7071/29-74131 * fax : +49 (0) 7071/29-5850 e-mail : Andreas.Hauck@earthling.net http://homepages.uni-tuebingen.de/andreas.hauck
On Thu, 18 Jun 1998, Andreas Hauck wrote: > Hi y'all, > > to unify the framework of the look an feeling of c++ programs relying on > libpq++ I propose to migrate to a consistant use of 'string' to represent any > text rather than 'char *'. > > Especially I refer to PgConnection::Exec(char *), ExecCommandOk() and > ExecTuplesOk(). It is very easy to switch over to the use of strings: in the > headerfiles only (char * --> string) has to be changed and in the > corresponding c++ files, the call to the c-functions becomes e.g. > PQexec(pgConn, query) --> PQexec(pgConn, query.c_str()). > > The old style call via 'char *' would still be possible, since 'char *' is > automatically convertet to 'string'. I'm all for it, but are you sure about the automatic conversion? I don't think it does that.... I just did a grep on bastring.h, and it doesn't show a char* operator. And string.c_str() returns a const char*, which gives all sorts of errors/warning during compile..... Maarten _____________________________________________________________________________ | TU Delft, The Netherlands, Faculty of Information Technology and Systems | | Department of Electrical Engineering | | Computer Architecture and Digital Technique section | | M.Boekhold@et.tudelft.nl | -----------------------------------------------------------------------------