PCR_ERes_IsErr 1997 gc/os_dep.c if (PCR_ERes_IsErr( PCR_ERes_IsErr 1999 gc/os_dep.c || PCR_ERes_IsErr(GC_push_thread_stack(PCR_Th_CurrThread(), 0))) { PCR_ERes_IsErr 85 gc/pcr_interface.c if (PCR_ERes_IsErr(ed -> ed_fail_code)) return;