piecewise_linear_distribution(); (1) (since C++11) template< class InputIt1, class InputIt2 >
piecewise_linear_distribution( InputIt1 first_i, InputIt1 last_i,
InputIt2 first_w ); (2) (since C++11) template< class UnaryOperation >
piecewise_linear_distribution( std::initializer_list<RealType> ilist,
UnaryOperation fw ); (3) (since C++11) template< class UnaryOperation >
piecewise_linear_dis