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class method

BigDecimal.save_rounding_mode

BigDecimal.save_rounding_mode { ... }

ext/bigdecimal/bigdecimal.c View on GitHub ↗

static VALUE
BigDecimal_save_rounding_mode(VALUE self)
{
    unsigned short const round_mode = VpGetRoundMode();
    int state;
    VALUE ret = rb_protect(rb_yield, Qnil, &state);
    VpSetRoundMode(round_mode);
    if (state) rb_jump_tag(state);
    return ret;
}

Execute the provided block, but preserve the rounding mode

Example

BigDecimal.save_rounding_mode do
  BigDecimal.mode(BigDecimal::ROUND_MODE, :up)
  puts BigDecimal.mode(BigDecimal::ROUND_MODE)
end

For use with the BigDecimal::ROUND_*

See BigDecimal.mode

See also .save_limit #% .save_exception_mode #* also in 3.3 · 3.2 · 3.1

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