ruby-changes:11946
From: matz <ko1@a...>
Date: Mon, 1 Jun 2009 07:47:13 +0900 (JST)
Subject: [ruby-changes:11946] Ruby:r23609 (trunk): * ext/bigdecimal/bigdecimal.c (BigDecimal_to_f): returns Inf if
matz 2009-06-01 07:46:43 +0900 (Mon, 01 Jun 2009) New Revision: 23609 http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=23609 Log: * ext/bigdecimal/bigdecimal.c (BigDecimal_to_f): returns Inf if exp is bigger than DBL_MANT_DIG. Modified files: trunk/ChangeLog trunk/ext/bigdecimal/bigdecimal.c Index: ChangeLog =================================================================== --- ChangeLog (revision 23608) +++ ChangeLog (revision 23609) @@ -1,3 +1,8 @@ +Mon Jun 1 07:20:02 2009 Yukihiro Matsumoto <matz@r...> + + * ext/bigdecimal/bigdecimal.c (BigDecimal_to_f): returns Inf if + exp is bigger than DBL_MANT_DIG. + Sun May 31 23:28:00 2009 Nobuyoshi Nakada <nobu@r...> * lib/mkmf.rb (create_makefile): checks for duplication of source Index: ext/bigdecimal/bigdecimal.c =================================================================== --- ext/bigdecimal/bigdecimal.c (revision 23608) +++ ext/bigdecimal/bigdecimal.c (revision 23609) @@ -604,16 +604,18 @@ volatile VALUE str; GUARD_OBJ(p,GetVpValue(self,1)); - if(VpVtoD(&d, &e, p)!=1) return rb_float_new(d); + if (VpVtoD(&d, &e, p)!=1) return rb_float_new(d); + if (e > DBL_MAX_10_EXP) goto erange; str = rb_str_new(0, VpNumOfChars(p,"E")); buf = RSTRING_PTR(str); VpToString(p, buf, 0, 0); errno = 0; d = strtod(buf, 0); if(errno == ERANGE) { + erange: VpException(VP_EXCEPTION_OVERFLOW,"BigDecimal to Float conversion",0); - if(d>0.0) return rb_float_new(DBL_MAX); - else return rb_float_new(-DBL_MAX); + if(d>0.0) d = VpGetDoublePosInf(); + else d = VpGetDoubleNegInf(); } return rb_float_new(d); } -- ML: ruby-changes@q... Info: http://www.atdot.net/~ko1/quickml/