-----Original Message----- From: philip tucker Sent: Tuesday, April 20, 2010 4:44 PM To: boost-users@lists.boost.org Subject: Re: [Boost-users] still stuck on expectation points On 16 Apr 2010, at 6:52 PM, OvermindDL1 wrote:

On Fri, Apr 16, 2010 at 7:47 PM, philip tucker wrote:

...

On 16 Apr 2010, at 6:16 PM, OvermindDL1 wrote:

...

start %= (constitkind >> (id > ':' > id) >> probs) % ",";

Thanks, but I already tried it. Doesn't compile.

Er, if you re-read my post I was saying *not* to do that, because that will not work, that is actually what the compiler is doing because of operator precedence. You should memorize the precedence rules for C++, *especially* if you are going to be dealing with heavily templated operator libraries like Spirit. http://en.wikipedia.org/wiki/Operators_in_C_and_C%2B%2B

Because you are mixing right-shifts (>>) and greater-than's (>), the precedence causes them to collapse in different ways, which is why you need the parenthesis like this: start %= (constitkind >> (id > (':' > (id >> probs)))) % ",";

Again, learn the C++ operator precedence rules and all this will make easy sense. :) _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

If I have understood your advice correctly, you suggest that this code should compile:

start %= (constitkind >> (id > (':' > (id >> probs)))) % ",";

It doesn't. _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users ____________________________________________________________ Sorry for the bad way to respond, on phone with outlook mobile. Do you have a complete compilable example that demonstrates your problem? Also, try asking on the Spirit mailing list.