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-rw-r--r--ChangeLog5
-rw-r--r--string.c2
-rw-r--r--test/ruby/test_string.rb11
3 files changed, 17 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index 6d1ceb6cba..309a5556fd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Apr 9 12:44:54 2014 Nobuyoshi Nakada <nobu@ruby-lang.org>
+
+ * string.c (str_buf_cat): should round up the capacity by 4KiB,
+ but not number of rooms. [ruby-core:61886] [Bug #9709]
+
Tue Apr 8 22:55:32 2014 Akinori MUSHA <knu@iDaemons.org>
* lib/mkmf.rb (MakeMakefile#dir_config): Improve documentation.
diff --git a/string.c b/string.c
index 511374c7b8..ccf265738e 100644
--- a/string.c
+++ b/string.c
@@ -2029,7 +2029,7 @@ str_buf_cat(VALUE str, const char *ptr, long len)
if (capa <= total) {
while (total > capa) {
if (capa + termlen >= LONG_MAX / 2) {
- capa = (total + 4095) / 4096;
+ capa = (total + 4095) / 4096 * 4096;
break;
}
capa = (capa + termlen) * 2;
diff --git a/test/ruby/test_string.rb b/test/ruby/test_string.rb
index a35f6a3bb7..8366424c66 100644
--- a/test/ruby/test_string.rb
+++ b/test/ruby/test_string.rb
@@ -2252,6 +2252,17 @@ class TestString < Test::Unit::TestCase
assert_equal(:foo, s.send(:=~, /abc/))
assert_equal(:foo, s =~ /abc/, "should not use optimized instruction")
end
+
+ def test_LSHIFT_neary_long_max
+ return unless @cls == String
+ assert_ruby_status([], <<-'end;', '[ruby-core:61886] [Bug #9709]')
+ begin
+ a = "a" * 0x4000_0000
+ a << "a" * 0x1_0000
+ rescue NoMemoryError
+ end
+ end;
+ end
end
class TestString2 < TestString