[Boost-users] lambda control structures

Subject: [Boost-users] lambda control structures
From: Archie14 (admin_at_[hidden])
Date: 2010-02-05 16:50:16

I have following code:

bool a = true;
std::for_each (_params.begin(), _params.end(), 
                boost::lambda::if_(! boost::lambda::bind
(&inputParams::getParamValue, this, boost::lambda::_1, boost::ref(_fddata))) 
[a = false]);

if (! a)
...

What I am trying to achieve is to stop for_each if "getParamValue" returns 
false. However I can't find a way to use "return" in the second part of 
boost::lambda::if_, so I am using a dummy var "a" to check it after the loop 
completes. 

My question is: what is the right way to use lambda control structure in this 
case?