зеркало из https://github.com/github/ruby.git
* ext/bigdecimal/bigdecimal.c (BigDecimal_div2): The signature was
changed to allow us to pass arguments directly. * ext/bigdecimal/bigdecimal.c (BigDecimal_div3): Added for the role of the old BigDecimal_div2. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43815 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
mrkn
Родитель
c5a919fb3b
Коммит
926960b01b
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@ -1,3 +1,11 @@
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Sat Nov 23 19:20:00 2013 Kenta Murata <mrkn@mrkn.jp>
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* ext/bigdecimal/bigdecimal.c (BigDecimal_div2): The signature was
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changed to allow us to pass arguments directly.
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* ext/bigdecimal/bigdecimal.c (BigDecimal_div3): Added for the role of
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the old BigDecimal_div2.
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Sat Nov 23 12:31:00 2013 Koichi Sasada <ko1@atdot.net>
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* gc.c: fix global variable name.
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@ -190,13 +190,13 @@ cannot_be_coerced_into_BigDecimal(VALUE exc_class, VALUE v)
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rb_exc_raise(rb_exc_new3(exc_class, str));
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}
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static VALUE BigDecimal_div2(int, VALUE*, VALUE);
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static inline VALUE BigDecimal_div2(VALUE, VALUE, VALUE);
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static Real*
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GetVpValueWithPrec(VALUE v, long prec, int must)
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{
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Real *pv;
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VALUE num, bg, args[2];
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VALUE num, bg;
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char szD[128];
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VALUE orig = Qundef;
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@ -215,9 +215,7 @@ again:
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pv = GetVpValueWithPrec(num, -1, must);
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if (pv == NULL) goto SomeOneMayDoIt;
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args[0] = RRATIONAL(v)->den;
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args[1] = LONG2NUM(prec);
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v = BigDecimal_div2(2, args, ToValue(pv));
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v = BigDecimal_div2(ToValue(pv), RRATIONAL(v)->den, LONG2NUM(prec));
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goto again;
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}
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@ -1456,22 +1454,26 @@ BigDecimal_divmod(VALUE self, VALUE r)
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/*
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* See BigDecimal#quo
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*/
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static VALUE
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BigDecimal_div2(int argc, VALUE *argv, VALUE self)
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static inline VALUE
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BigDecimal_div2(VALUE self, VALUE b, VALUE n)
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{
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ENTER(5);
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VALUE b,n;
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int na = rb_scan_args(argc, argv, "11", &b, &n);
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if (na == 1) { /* div in Float sense */
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SIGNED_VALUE ix;
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if (NIL_P(n)) { /* div in Float sense */
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Real *div = NULL;
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Real *mod;
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if (BigDecimal_DoDivmod(self, b, &div, &mod)) {
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return BigDecimal_to_i(ToValue(div));
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}
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return DoSomeOne(self, b, rb_intern("div"));
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} else { /* div in BigDecimal sense */
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SIGNED_VALUE ix = GetPositiveInt(n);
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if (ix == 0) return BigDecimal_div(self, b);
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}
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/* div in BigDecimal sense */
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ix = GetPositiveInt(n);
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if (ix == 0) {
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return BigDecimal_div(self, b);
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}
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else {
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Real *res = NULL;
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Real *av = NULL, *bv = NULL, *cv = NULL;
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@ -1489,7 +1491,16 @@ BigDecimal_div2(int argc, VALUE *argv, VALUE self)
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VpLeftRound(cv, VpGetRoundMode(), ix);
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return ToValue(cv);
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}
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}
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}
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static VALUE
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BigDecimal_div3(int argc, VALUE *argv, VALUE self)
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{
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VALUE b,n;
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rb_scan_args(argc, argv, "11", &b, &n);
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return BigDecimal_div2(self, b, n);
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}
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static VALUE
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@ -2747,7 +2758,6 @@ BigMath_s_exp(VALUE klass, VALUE x, VALUE vprec)
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i = 0;
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while (!VpIsZero((Real*)DATA_PTR(d))) {
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VALUE argv[2];
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SIGNED_VALUE const ey = VpExponent10(DATA_PTR(y));
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SIGNED_VALUE const ed = VpExponent10(DATA_PTR(d));
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ssize_t m = n - vabs(ey - ed);
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@ -2764,17 +2774,12 @@ BigMath_s_exp(VALUE klass, VALUE x, VALUE vprec)
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x1 = BigDecimal_mult2(x1, x, SSIZET2NUM(n));
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++i;
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z = BigDecimal_mult(z, SSIZET2NUM(i));
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argv[0] = z;
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argv[1] = SSIZET2NUM(m);
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d = BigDecimal_div2(2, argv, x1);
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d = BigDecimal_div2(x1, z, SSIZET2NUM(m));
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y = BigDecimal_add(y, d);
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}
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if (negative) {
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VALUE argv[2];
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argv[0] = y;
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argv[1] = vprec;
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return BigDecimal_div2(2, argv, one);
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return BigDecimal_div2(one, y, vprec);
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}
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else {
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vprec = SSIZET2NUM(prec - VpExponent10(DATA_PTR(y)));
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@ -2807,7 +2812,7 @@ BigMath_s_log(VALUE klass, VALUE x, VALUE vprec)
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ssize_t prec, n, i;
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SIGNED_VALUE expo;
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Real* vx = NULL;
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VALUE argv[2], vn, one, two, w, x2, y, d;
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VALUE vn, one, two, w, x2, y, d;
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int zero = 0;
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int negative = 0;
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int infinite = 0;
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@ -2913,9 +2918,7 @@ get_vp_value:
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expo = 0;
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}
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w = BigDecimal_sub(x, one);
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argv[0] = BigDecimal_add(x, one);
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argv[1] = vn;
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x = BigDecimal_div2(2, argv, w);
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x = BigDecimal_div2(w, BigDecimal_add(x, one), vn);
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RB_GC_GUARD(x2) = BigDecimal_mult2(x, x, vn);
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RB_GC_GUARD(y) = x;
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RB_GC_GUARD(d) = y;
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@ -2933,9 +2936,7 @@ get_vp_value:
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x = BigDecimal_mult2(x2, x, vn);
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i += 2;
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argv[0] = SSIZET2NUM(i);
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argv[1] = SSIZET2NUM(m);
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d = BigDecimal_div2(2, argv, x);
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d = BigDecimal_div2(x, SSIZET2NUM(i), SSIZET2NUM(m));
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y = BigDecimal_add(y, d);
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}
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@ -3214,7 +3215,7 @@ Init_bigdecimal(void)
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rb_define_method(rb_cBigDecimal, "add", BigDecimal_add2, 2);
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rb_define_method(rb_cBigDecimal, "sub", BigDecimal_sub2, 2);
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rb_define_method(rb_cBigDecimal, "mult", BigDecimal_mult2, 2);
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rb_define_method(rb_cBigDecimal, "div", BigDecimal_div2, -1);
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rb_define_method(rb_cBigDecimal, "div", BigDecimal_div3, -1);
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rb_define_method(rb_cBigDecimal, "hash", BigDecimal_hash, 0);
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rb_define_method(rb_cBigDecimal, "to_s", BigDecimal_to_s, -1);
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rb_define_method(rb_cBigDecimal, "to_i", BigDecimal_to_i, 0);
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