std::contracts::detection_mode

 

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Contract support

Contract-violation information

contract_violation (C++26)

assertion_kind (C++26)

evaluation_semantic (C++26)

detection_mode (C++26)

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invoke_default_contract_violation_handler (C++26)

 

Defined in header <contracts>
enumclass detection_mode :/* unspecified */{     predicate_false =1,     evaluation_exception =2 };		(since C++26)

The enumerators of std::contracts::detection_mode correspond to the reasons that cause the contract violation to happen under a context that is not manifestly constant-evaluated, with meanings listed below:

Enumerator	Meaning
predicate_false	the contract violation occurs because the result of the predicate is false
evaluation_exception	the contract violation occurs because the evaluation of the predicate exits via an exception

Notes

If a contract violation occurs in a context that is manifestly constant-evaluated, the contract-violation handler is not invoked.

See also

contract_violation (C++26)	the type holding the contract-violation information (class)
assertion_kind (C++26)	the kind of the contract assertion violated (enum)
evaluation_semantic (C++26)	the evaluation semantic when the contract violation occurs (enum)