ruby_gc_stress_mode 6160 gc.c (FIXNUM_P(ruby_gc_stress_mode) && (FIX2LONG(ruby_gc_stress_mode) & (1<<gc_stress_full_mark_after_malloc))) ruby_gc_stress_mode 6291 gc.c int flag = FIXNUM_P(ruby_gc_stress_mode) ? FIX2INT(ruby_gc_stress_mode) : 0; ruby_gc_stress_mode 7180 gc.c return ruby_gc_stress_mode;