struct f_setBlend : public unary_function<string, void> {
	void operator () (string & x) {
		return;
	}
};
		
vector<string> & vConstraints = pHAnim->getConstraints();
for_each (vConstraints.begin(), vConstraints.end(), f_setBlend() );

Error Message:

error: no matching function for call to 'for_each(__gnu_cxx::__normal_iterator<std::basic_string<char, std::char_traits<char>, std::allocator<char> >*, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, __gnu_cxx::__normal_iterator<std::basic_string<char, std::char_traits<char>, std::allocator<char> >*, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, H::HAnimator::blendOutAllAnimationsByConstraint(std::string, float)::f_setBlend)'