Add Float::INFINITY and Float::NAN.

* numeric.c (Init_Numeric): Add Float::INFINITY and Float::NAN.
  [ruby-dev:1657] [ruby-dev:4760] [ruby-list:7023] [ruby-list:46690]
  [ruby-core:26632] [ruby-talk:41352] [ruby-talk:203333]

* include/ruby/defines.h (INFINITY): defined.

* include/ruby/defines.h (NAN): defined.

* include/ruby/util.h (ruby_div0): removed.

* numeric.c (fix_pow): use INFINITY and NAN instead of ruby_div0(1.0).

* marshal.c (r_object0): ditto.

* bignum.c (big_fdiv): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26197 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 5 deletions

diff --git a/marshal.c b/marshal.c
index 549a6f6c0c..be33546a89 100644
--- a/marshal.c
+++ b/marshal.c
@@ -1322,8 +1322,6 @@ obj_alloc_by_path(VALUE path, struct load_arg *arg)
     return rb_obj_alloc(klass);
 }
 
-#define div0(x) ruby_div0(x)
-
 static int
 has_encoding(struct load_arg *arg)
 {
@@ -1449,13 +1447,13 @@ r_object0(struct load_arg *arg, int *ivp, VALUE extmod)
 	    const char *ptr = RSTRING_PTR(str);
 
 	    if (strcmp(ptr, "nan") == 0) {
-		d = div0(0.0);
+		d = NAN;
 	    }
 	    else if (strcmp(ptr, "inf") == 0) {
-		d = div0(+1.0);
+		d = INFINITY;
 	    }
 	    else if (strcmp(ptr, "-inf") == 0) {
-		d = div0(-1.0);
+		d = -INFINITY;
 	    }
 	    else {
 		char *e;