On 11/10/17 11:42, Fabien COELHO wrote: > After your explanation, and on third thoughts, ISTM that the assignment > should not include "const" in the explicit cast, i.e., use > > extern void * msg_func(void); > const char * msg = (char *) msg_func(); > > The variable or field is constant, not what the function returns, so > > const char * msg = (const char *) msg_func(); > > does not really make full sense to me, and moreover the compiler does not > complain without the const.
The compiler knows how to handle the char * -> const char * case, but not the char ** -> const char ** case. -- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers