operator==,!=(std::linear_congruential_engine)
From cppreference.com
< cpp | numeric | random | linear congruential engine
friend bool operator==( const linear_congruential_engine& lhs, const linear_congruential_engine& rhs ); |
(1) | (since C++11) |
friend bool operator!=( const linear_congruential_engine& lhs, const linear_congruential_engine& rhs ); |
(2) | (since C++11) (until C++20) |
Compares two pseudo-random number engines. Two engines are equal, if their internal states are equivalent, that is, if they would generate equivalent values for any number of calls of operator().
These functions are not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when std::linear_congruential_engine<UIntType, a, c, m> is an associated class of the arguments.
The |
(since C++20) |
[edit] Parameters
lhs, rhs | - | engines to compare |
[edit] Return value
1) true if the engines are equal, false otherwise.
2) true if the engines are not equal, false otherwise.
[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 |