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We currently only initialise terminate_fn if exceptions are enabled. However, contract handling requires terminate_fn when building the contract because a contract failure may result in std::terminate call regardless of whether the exceptions are enabled. Refactored init_exception_processing to extract the initialisation of terminate_fn. New function init_terminate_fn added that initialises terminate_fn if it hasn't already been initialised. Call to terminate_fn added in cxx_init_decl_processing if contracts are enabled. PR c++/110159 gcc/cp/ChangeLog: * cp-tree.h (init_terminate_fn): Declaration of a new function. * decl.cc (cxx_init_decl_processing): If contracts are enabled, call init_terminate_fn. * except.cc (init_exception_processing): Function refactored to call init_terminate_fn. (init_terminate_fn): Added new function that initializes terminate_fn if it hasn't already been initialised. gcc/testsuite/ChangeLog: * g++.dg/contracts/pr110159.C: New test. Signed-off-by: Nina Ranns <dinka.ranns@gmail.com>
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