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When the handler is called, it is passed the following arguments in the following order: #A

1. A pointer to a character string describing the runtime-constraint violation.

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1. A null pointer or a pointer to an implementation defined object.

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1. If the function calling the handler has a return type declared as errno_t, the return value of the function is passed. Otherwise, a positive value of type
   errno_t is passed.

A runtime-constraint handler is registered by calling the set_constraint_handler_s() function.

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