990203

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_3@389 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 1 deletions

diff --git a/numeric.c b/numeric.c
index 5a4d4930ac..21aecf73af 100644
--- a/numeric.c
+++ b/numeric.c
@@ -186,7 +186,9 @@ flo_to_s(flt)
     char buf[24];
 
     snprintf(buf, 24, "%.10g", RFLOAT(flt)->value);
-    if (strchr(buf, '.') == 0 && strcmp(buf, "Inf") != 0) {
+    if (strchr(buf, '.') == 0 &&
+	strcmp(buf, "Inf") != 0 &&
+	strcmp(buf, "NaN") != 0) {
 	int len = strlen(buf);
 	char *ind = strchr(buf, 'e');