diff options
Diffstat (limited to 'src/numeric.c')
| -rw-r--r-- | src/numeric.c | 174 |
1 files changed, 113 insertions, 61 deletions
diff --git a/src/numeric.c b/src/numeric.c index 8205e41f6..608b4f289 100644 --- a/src/numeric.c +++ b/src/numeric.c @@ -44,6 +44,15 @@ mrb_to_flo(mrb_state *mrb, mrb_value val) } return mrb_float(val); } + +MRB_API mrb_value +mrb_int_value(mrb_state *mrb, mrb_float f) +{ + if (FIXABLE_FLOAT(f)) { + return mrb_fixnum_value((mrb_int)f); + } + return mrb_float_value(mrb, f); +} #endif /* @@ -56,7 +65,7 @@ mrb_to_flo(mrb_state *mrb, mrb_value val) * 2.0**3 #=> 8.0 */ static mrb_value -num_pow(mrb_state *mrb, mrb_value x) +integral_pow(mrb_state *mrb, mrb_value x) { mrb_value y; #ifndef MRB_WITHOUT_FLOAT @@ -103,6 +112,25 @@ num_pow(mrb_state *mrb, mrb_value x) #endif } +static mrb_value +integral_idiv(mrb_state *mrb, mrb_value x) +{ +#ifdef MRB_WITHOUT_FLOAT + mrb_value y; + + mrb_get_args(mrb, "o", &y); + if (!mrb_fixnum_p(y)) { + mrb_raise(mrb, E_TYPE_ERROR, "non fixnum value"); + } + return mrb_fixnum_value(mrb_fixnum(x) / mrb_fixnum(y)); +#else + mrb_float y; + + mrb_get_args(mrb, "f", &y); + return mrb_int_value(mrb, mrb_to_flo(mrb, x) / y); +#endif +} + /* 15.2.8.3.4 */ /* 15.2.9.3.4 */ /* @@ -114,19 +142,6 @@ num_pow(mrb_state *mrb, mrb_value x) * result. */ -mrb_value -mrb_num_div(mrb_state *mrb, mrb_value x, mrb_value y) -{ -#ifdef MRB_WITHOUT_FLOAT - if (!mrb_fixnum_p(y)) { - mrb_raise(mrb, E_TYPE_ERROR, "non fixnum value"); - } - return mrb_fixnum_value(mrb_fixnum(x) / mrb_fixnum(y)); -#else - return mrb_float_value(mrb, mrb_to_flo(mrb, x) / mrb_to_flo(mrb, y)); -#endif -} - /* 15.2.9.3.19(x) */ /* * call-seq: @@ -136,7 +151,7 @@ mrb_num_div(mrb_state *mrb, mrb_value x, mrb_value y) */ static mrb_value -num_div(mrb_state *mrb, mrb_value x) +integral_div(mrb_state *mrb, mrb_value x) { #ifdef MRB_WITHOUT_FLOAT mrb_value y; @@ -155,7 +170,7 @@ num_div(mrb_state *mrb, mrb_value x) } static mrb_value -num_coerce_step_counter(mrb_state *mrb, mrb_value self) +integral_coerce_step_counter(mrb_state *mrb, mrb_value self) { mrb_value counter = self, num, step; @@ -421,7 +436,7 @@ value_int64(mrb_state *mrb, mrb_value x) static mrb_value int64_value(mrb_state *mrb, int64_t v) { - if (FIXABLE(v)) { + if (TYPED_FIXABLE(v,int64_t)) { return mrb_fixnum_value((mrb_int)v); } return mrb_float_value(mrb, (mrb_float)v); @@ -484,6 +499,10 @@ flo_shift(mrb_state *mrb, mrb_value x, mrb_int width) if (width < 0) { while (width++) { val /= 2; + if (val < 1.0) { + val = 0; + break; + } } #if defined(_ISOC99_SOURCE) val = trunc(val); @@ -503,10 +522,7 @@ flo_shift(mrb_state *mrb, mrb_value x, mrb_int width) val *= 2; } } - if (FIXABLE_FLOAT(val)) { - return mrb_fixnum_value((mrb_int)val); - } - return mrb_float_value(mrb, val); + return mrb_int_value(mrb, val); } static mrb_value @@ -612,10 +628,7 @@ flo_floor(mrb_state *mrb, mrb_value num) mrb_float f = floor(mrb_float(num)); mrb_check_num_exact(mrb, f); - if (!FIXABLE_FLOAT(f)) { - return mrb_float_value(mrb, f); - } - return mrb_fixnum_value((mrb_int)f); + return mrb_int_value(mrb, f); } /* 15.2.9.3.8 */ @@ -638,10 +651,7 @@ flo_ceil(mrb_state *mrb, mrb_value num) mrb_float f = ceil(mrb_float(num)); mrb_check_num_exact(mrb, f); - if (!FIXABLE_FLOAT(f)) { - return mrb_float_value(mrb, f); - } - return mrb_fixnum_value((mrb_int)f); + return mrb_int_value(mrb, f); } /* 15.2.9.3.12 */ @@ -722,7 +732,7 @@ flo_round(mrb_state *mrb, mrb_value num) if (!isfinite(number)) return num; return mrb_float_value(mrb, number); } - return mrb_fixnum_value((mrb_int)number); + return mrb_int_value(mrb, number); } /* 15.2.9.3.14 */ @@ -744,10 +754,7 @@ flo_truncate(mrb_state *mrb, mrb_value num) if (f < 0.0) f = ceil(f); mrb_check_num_exact(mrb, f); - if (!FIXABLE_FLOAT(f)) { - return mrb_float_value(mrb, f); - } - return mrb_fixnum_value((mrb_int)f); + return mrb_int_value(mrb, f); } static mrb_value @@ -780,8 +787,8 @@ int_to_i(mrb_state *mrb, mrb_value num) return num; } -mrb_value -mrb_fixnum_mul(mrb_state *mrb, mrb_value x, mrb_value y) +static mrb_value +fixnum_mul(mrb_state *mrb, mrb_value x, mrb_value y) { mrb_int a; @@ -805,6 +812,21 @@ mrb_fixnum_mul(mrb_state *mrb, mrb_value x, mrb_value y) #endif } +MRB_API mrb_value +mrb_num_mul(mrb_state *mrb, mrb_value x, mrb_value y) +{ + if (mrb_fixnum_p(x)) { + return fixnum_mul(mrb, x, y); + } +#ifndef MRB_WITHOUT_FLOAT + if (mrb_float_p(x)) { + return mrb_float_value(mrb, mrb_float(x) * mrb_to_flo(mrb, y)); + } +#endif + mrb_raise(mrb, E_TYPE_ERROR, "no number multiply"); + return mrb_nil_value(); /* not reached */ +} + /* 15.2.8.3.3 */ /* * call-seq: @@ -821,7 +843,7 @@ fix_mul(mrb_state *mrb, mrb_value x) mrb_value y; mrb_get_args(mrb, "o", &y); - return mrb_fixnum_mul(mrb, x, y); + return fixnum_mul(mrb, x, y); } static void @@ -933,7 +955,7 @@ fix_divmod(mrb_state *mrb, mrb_value x) mrb_value a, b; flodivmod(mrb, (mrb_float)mrb_fixnum(x), mrb_to_flo(mrb, y), &div, &mod); - a = mrb_float_value(mrb, div); + a = mrb_int_value(mrb, div); b = mrb_float_value(mrb, mod); return mrb_assoc_new(mrb, a, b); } @@ -951,7 +973,7 @@ flo_divmod(mrb_state *mrb, mrb_value x) mrb_get_args(mrb, "o", &y); flodivmod(mrb, mrb_float(x), mrb_to_flo(mrb, y), &div, &mod); - a = mrb_float_value(mrb, div); + a = mrb_int_value(mrb, div); b = mrb_float_value(mrb, mod); return mrb_assoc_new(mrb, a, b); } @@ -1230,15 +1252,15 @@ mrb_flo_to_fixnum(mrb_state *mrb, mrb_value x) z = (mrb_int)d; } else { - mrb_raisef(mrb, E_ARGUMENT_ERROR, "number (%S) too big for integer", x); + mrb_raisef(mrb, E_RANGE_ERROR, "number (%S) too big for integer", x); } } return mrb_fixnum_value(z); } #endif -mrb_value -mrb_fixnum_plus(mrb_state *mrb, mrb_value x, mrb_value y) +static mrb_value +fixnum_plus(mrb_state *mrb, mrb_value x, mrb_value y) { mrb_int a; @@ -1262,6 +1284,21 @@ mrb_fixnum_plus(mrb_state *mrb, mrb_value x, mrb_value y) #endif } +MRB_API mrb_value +mrb_num_plus(mrb_state *mrb, mrb_value x, mrb_value y) +{ + if (mrb_fixnum_p(x)) { + return fixnum_plus(mrb, x, y); + } +#ifndef MRB_WITHOUT_FLOAT + if (mrb_float_p(x)) { + return mrb_float_value(mrb, mrb_float(x) + mrb_to_flo(mrb, y)); + } +#endif + mrb_raise(mrb, E_TYPE_ERROR, "no number addition"); + return mrb_nil_value(); /* not reached */ +} + /* 15.2.8.3.1 */ /* * call-seq: @@ -1277,11 +1314,11 @@ fix_plus(mrb_state *mrb, mrb_value self) mrb_value other; mrb_get_args(mrb, "o", &other); - return mrb_fixnum_plus(mrb, self, other); + return fixnum_plus(mrb, self, other); } -mrb_value -mrb_fixnum_minus(mrb_state *mrb, mrb_value x, mrb_value y) +static mrb_value +fixnum_minus(mrb_state *mrb, mrb_value x, mrb_value y) { mrb_int a; @@ -1304,6 +1341,21 @@ mrb_fixnum_minus(mrb_state *mrb, mrb_value x, mrb_value y) #endif } +MRB_API mrb_value +mrb_num_minus(mrb_state *mrb, mrb_value x, mrb_value y) +{ + if (mrb_fixnum_p(x)) { + return fixnum_minus(mrb, x, y); + } +#ifdef MRB_WITHOUT_FLOAT + if (mrb_float_p(x)) { + return mrb_float_value(mrb, mrb_float(x) - mrb_to_flo(mrb, y)); + } +#endif + mrb_raise(mrb, E_TYPE_ERROR, "no number subtraction"); + return mrb_nil_value(); /* not reached */ +} + /* 15.2.8.3.2 */ /* 15.2.8.3.16 */ /* @@ -1320,7 +1372,7 @@ fix_minus(mrb_state *mrb, mrb_value self) mrb_value other; mrb_get_args(mrb, "o", &other); - return mrb_fixnum_minus(mrb, self, other); + return fixnum_minus(mrb, self, other); } @@ -1430,7 +1482,7 @@ cmpnum(mrb_state *mrb, mrb_value v1, mrb_value v2) * basis for the tests in <code>Comparable</code>. */ static mrb_value -num_cmp(mrb_state *mrb, mrb_value self) +integral_cmp(mrb_state *mrb, mrb_value self) { mrb_value other; mrb_int n; @@ -1450,7 +1502,7 @@ cmperr(mrb_state *mrb, mrb_value v1, mrb_value v2) } static mrb_value -num_lt(mrb_state *mrb, mrb_value self) +integral_lt(mrb_state *mrb, mrb_value self) { mrb_value other; mrb_int n; @@ -1463,7 +1515,7 @@ num_lt(mrb_state *mrb, mrb_value self) } static mrb_value -num_le(mrb_state *mrb, mrb_value self) +integral_le(mrb_state *mrb, mrb_value self) { mrb_value other; mrb_int n; @@ -1476,7 +1528,7 @@ num_le(mrb_state *mrb, mrb_value self) } static mrb_value -num_gt(mrb_state *mrb, mrb_value self) +integral_gt(mrb_state *mrb, mrb_value self) { mrb_value other; mrb_int n; @@ -1489,7 +1541,7 @@ num_gt(mrb_state *mrb, mrb_value self) } static mrb_value -num_ge(mrb_state *mrb, mrb_value self) +integral_ge(mrb_state *mrb, mrb_value self) { mrb_value other; mrb_int n; @@ -1544,21 +1596,21 @@ mrb_init_numeric(mrb_state *mrb) #endif integral = mrb_define_module(mrb, "Integral"); + mrb_define_method(mrb, integral,"**", integral_pow, MRB_ARGS_REQ(1)); + mrb_define_method(mrb, integral,"/", integral_div, MRB_ARGS_REQ(1)); /* 15.2.{8,9}.3.6 */ + mrb_define_method(mrb, integral,"quo", integral_div, MRB_ARGS_REQ(1)); /* 15.2.7.4.5 (x) */ + mrb_define_method(mrb, integral,"div", integral_idiv, MRB_ARGS_REQ(1)); + mrb_define_method(mrb, integral,"<=>", integral_cmp, MRB_ARGS_REQ(1)); /* 15.2.{8,9}.3.1 */ + mrb_define_method(mrb, integral,"<", integral_lt, MRB_ARGS_REQ(1)); + mrb_define_method(mrb, integral,"<=", integral_le, MRB_ARGS_REQ(1)); + mrb_define_method(mrb, integral,">", integral_gt, MRB_ARGS_REQ(1)); + mrb_define_method(mrb, integral,">=", integral_ge, MRB_ARGS_REQ(1)); + mrb_define_method(mrb, integral,"__coerce_step_counter", integral_coerce_step_counter, MRB_ARGS_REQ(2)); /* Numeric Class */ numeric = mrb_define_class(mrb, "Numeric", mrb->object_class); /* 15.2.7 */ - - mrb_define_method(mrb, numeric, "**", num_pow, MRB_ARGS_REQ(1)); - mrb_define_method(mrb, numeric, "/", num_div, MRB_ARGS_REQ(1)); /* 15.2.8.3.4 */ - mrb_define_method(mrb, numeric, "quo", num_div, MRB_ARGS_REQ(1)); /* 15.2.7.4.5 (x) */ - mrb_define_method(mrb, numeric, "<=>", num_cmp, MRB_ARGS_REQ(1)); /* 15.2.9.3.6 */ - mrb_define_method(mrb, numeric, "<", num_lt, MRB_ARGS_REQ(1)); - mrb_define_method(mrb, numeric, "<=", num_le, MRB_ARGS_REQ(1)); - mrb_define_method(mrb, numeric, ">", num_gt, MRB_ARGS_REQ(1)); - mrb_define_method(mrb, numeric, ">=", num_ge, MRB_ARGS_REQ(1)); mrb_define_method(mrb, numeric, "finite?", num_finite_p, MRB_ARGS_NONE()); mrb_define_method(mrb, numeric, "infinite?",num_infinite_p, MRB_ARGS_NONE()); - mrb_define_method(mrb, numeric, "__coerce_step_counter", num_coerce_step_counter, MRB_ARGS_REQ(2)); /* Integer Class */ integer = mrb_define_class(mrb, "Integer", numeric); /* 15.2.8 */ |