End of Life Ruby 3.2 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

class method

GC.using_rvargc?

GC.using_rvargc? → true or false

static VALUE
gc_using_rvargc_p(VALUE mod)
{
#if USE_RVARGC
    return Qtrue;
#else
    return Qfalse;
#endif
}

Returns true if using experimental feature Variable Width Allocation, false otherwise.

See also .total_time .verify_compaction_references .stress= .verify_internal_consistency