From b3b5e626ad69bf22be3228f847f94e1b68f40888 Mon Sep 17 00:00:00 2001 From: ko1 Date: Thu, 23 Aug 2012 07:22:40 +0000 Subject: * include/ruby/ruby.h: introduce flonum technique for 64bit CPU environment (sizeof(double) == sizeof(VALUE)). flonum technique enables to avoid double object creation if the double value d is in range about between 1.72723e-77 < |d| <= 1.15792e+77 or 0.0. flonum Float value is immediate and their lowest two bits are b10. If flonum is activated, then USE_FLONUM macro is 1. I'll write detailed in this technique on https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/Flonum_tech * benchmark/bmx_temp.rb: add an benchmark for simple Float calculation. * gc.c (id2ref, rb_obj_id): add flonum Float support. * include/ruby/intern.h: move decl of rb_float_new(double) to include/ruby/ruby.h. * insns.def, vm.c, vm_insnhelper.c: add flonum optimization and simplify source code. * vm_insnhelper.h (FLONUM_2_P): added. * marshal.c: support flonum output. * numeric.c (rb_float_new_in_heap): added. * parse.y: support flonum. * random.c: ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36798 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- random.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'random.c') diff --git a/random.c b/random.c index a1fb3a800b..b36784c405 100644 --- a/random.c +++ b/random.c @@ -1122,8 +1122,7 @@ rand_range(struct MT* mt, VALUE range) case T_FLOAT: { VALUE f = rb_check_to_float(beg); if (!NIL_P(f)) { - RFLOAT_VALUE(v) += RFLOAT_VALUE(f); - return v; + return DBL2NUM(RFLOAT_VALUE(v) + RFLOAT_VALUE(f)); } } default: -- cgit v1.2.3