diff options
Diffstat (limited to 'src/numeric.c')
| -rw-r--r-- | src/numeric.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/src/numeric.c b/src/numeric.c index 78d8e2e9d..462faf686 100644 --- a/src/numeric.c +++ b/src/numeric.c @@ -118,14 +118,14 @@ mrb_flo_to_str(mrb_state *mrb, mrb_value flo, int max_digit) n = mrb_float(flo); if (isnan(n)) { - result = mrb_str_new(mrb, "NaN", 3); + result = mrb_str_new_lit(mrb, "NaN"); } else if (isinf(n)) { if (n < 0) { - result = mrb_str_new(mrb, "-inf", 4); + result = mrb_str_new_lit(mrb, "-inf"); } else { - result = mrb_str_new(mrb, "inf", 3); + result = mrb_str_new_lit(mrb, "inf"); } } else { @@ -612,6 +612,12 @@ flo_truncate(mrb_state *mrb, mrb_value num) return mrb_fixnum_value((mrb_int)f); } +static mrb_value +flo_nan_p(mrb_state *mrb, mrb_value num) +{ + return mrb_bool_value(isnan(mrb_float(num))); +} + /* * Document-class: Integer * @@ -657,7 +663,7 @@ mrb_fixnum_mul(mrb_state *mrb, mrb_value x, mrb_value y) if (a != 0 && c/a != b) { return mrb_float_value(mrb, (mrb_float)a*(mrb_float)b); } - return mrb_fixnum_value(c);; + return mrb_fixnum_value(c); } return mrb_float_value(mrb, (mrb_float)a * mrb_to_flo(mrb, y)); } @@ -1331,4 +1337,5 @@ mrb_init_numeric(mrb_state *mrb) mrb_define_method(mrb, fl, "to_s", flo_to_s, MRB_ARGS_NONE()); /* 15.2.9.3.16(x) */ mrb_define_method(mrb, fl, "inspect", flo_to_s, MRB_ARGS_NONE()); + mrb_define_method(mrb, fl, "nan?", flo_nan_p, MRB_ARGS_NONE()); } |