std::shuffle_order_engine| Member functions |
|
|
|
| Generation |
|
|
| Characteristics |
|
|
| Non-member functions |
operator==operator!= (C++11)(C++11)(until C++20) |
|
friendbool operator==(const shuffle_order_engine& lhs,
const shuffle_order_engine& rhs); | (1) | (since C++11) |
friendbool operator!=(const shuffle_order_engine& lhs,
const shuffle_order_engine& rhs); | (2) | (since C++11)
(until C++20) |
| | |
Compares two pseudo-random number engine adaptors. Two engine adaptors are equal, if their underlying engines are equal and their internal state (if any) is equal, that is, if they would generate equivalent values for any number of calls ofoperator().
These functions are not visible to ordinaryunqualified orqualified lookup, and can only be found byargument-dependent lookup when std::shuffle_order_engine<Engine, k> is an associated class of the arguments.
The!= operator issynthesized fromoperator==. | (since C++20) |
[edit]Parameters
| lhs, rhs | - | engine adaptors to compare |
[edit]Return value
1)true if the engine adaptors are equivalent,false otherwise.
2)true if the engine adaptors are not equivalent,false otherwise.
[edit]Exceptions
Throws nothing.
[edit]Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|
| LWG 3519 | C++11 | the form of equality operators were unspecified | specified to be hidden friends |
