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* ext/bigdecimal/bigdecimal.c (BigDecimal_to_i): update RDoc to

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denote that #to_i raises FloatDomainError for Inf and NaN.

* ext/bigdecimal/bigdecimal.c (BigDecimal_to_i): fast #to_i using
  BigDecimal_split(). 

* bignum.c (conv_digit): use faster ISDIGIT() assuming ASCII.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26461 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
matz 2010-01-28 16:34:11 +00:00
parent a715d95a82
commit d1499525d5
3 changed files with 31 additions and 26 deletions
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10
ChangeLog
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@ -1,3 +1,13 @@
Fri Jan 29 01:26:53 2010 Yukihiro Matsumoto <matz@ruby-lang.org>
* ext/bigdecimal/bigdecimal.c (BigDecimal_to_i): update RDoc to
denote that #to_i raises FloatDomainError for Inf and NaN.
* ext/bigdecimal/bigdecimal.c (BigDecimal_to_i): fast #to_i using
BigDecimal_split().
* bignum.c (conv_digit): use faster ISDIGIT() assuming ASCII.
Fri Jan 29 00:18:54 2010 Yusuke Endoh <mame@tsg.ne.jp>
* lib/cgi.rb: set autoload to CGI::HtmlExtension. [ruby-dev:40194]

2
bignum.c
View file

@ -437,6 +437,8 @@ rb_cstr_to_inum(const char *str, int base, int badcheck)
VALUE z;
BDIGIT *zds;
#undef ISDIGIT
#define ISDIGIT(c) ('0' <= (c) && (c) <= '9')
#define conv_digit(c) \
(!ISASCII(c) ? -1 : \
ISDIGIT(c) ? ((c) - '0') : \

45
ext/bigdecimal/bigdecimal.c
View file

@ -473,9 +473,11 @@ BigDecimal_check_num(Real *p)
}
}
static VALUE BigDecimal_split(VALUE self);
/* Returns the value as an integer (Fixnum or Bignum).
*
* If the BigNumber is infinity or NaN, returns nil.
* If the BigNumber is infinity or NaN, raises FloatDomainError.
*/
static VALUE
BigDecimal_to_i(VALUE self)
@ -497,31 +499,24 @@ BigDecimal_to_i(VALUE self)
e = VpGetSign(p)*p->frac[0];
return INT2FIX(e);
}
str = rb_str_new(0, e+nf+2);
psz = RSTRING_PTR(str);
else {
VALUE a = BigDecimal_split(self);
VALUE digits = RARRAY_PTR(a)[1];
VALUE numerator = rb_funcall(digits, rb_intern("to_i"), 0);
int dpower = e - RSTRING_LEN(digits);
n = (e+nf-1)/nf;
pch = psz;
if(VpGetSign(p)<0) *pch++ = '-';
for(i=0;i<n;++i) {
b = VpBaseVal()/10;
if(i>=(int)p->Prec) {
while(b) {
*pch++ = '0';
b /= 10;
}
continue;
}
v = p->frac[i];
while(b) {
j = v/b;
*pch++ = (char)(j + '0');
v -= j*b;
b /= 10;
}
if (VpGetSign(p) < 0) {
numerator = rb_funcall(numerator, '*', 1, INT2FIX(-1));
}
if (dpower < 0) {
return rb_funcall(numerator, rb_intern("div"), 1,
rb_funcall(INT2FIX(10), rb_intern("**"), 1,
INT2FIX(-dpower)));
}
return rb_funcall(numerator, '*', 1,
rb_funcall(INT2FIX(10), rb_intern("**"), 1,
INT2FIX(dpower)));
}
*pch++ = 0;
return rb_cstr2inum(psz,10);
}
/* Returns a new Float object having approximately the same value as the
@ -556,8 +551,6 @@ BigDecimal_to_f(VALUE self)
}
static VALUE BigDecimal_split(VALUE self);
/* Converts a BigDecimal to a Rational.
*/
static VALUE