Hello PJ, Saturday, May 10, 2008, 1:45:29 AM, you wrote:
Q: Does that look ok? Is the db <- newCString leaking ?
yes. use withCString instead
void GetStringValues( char* s1, char* s2);
if this functions fills s1 and s2, use alloca and peekCString one example of (rather generic) wrapper for C functions that accepts string (c_method) and returns string (c_out_method): generalDoWithMethod mType c_action method = do withCString method $ \c_method -> do allocaBytes aMAX_METHOD_STRLEN $ \c_out_method -> do ret <- c_action c_method c_out_method case ret of 0 -> peekCString c_out_method _ -> fail$ "Unsupported "++mType++" method or error in parameters: "++method -- Best regards, Bulat mailto:Bulat.Ziganshin@gmail.com