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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2011-01-24 22:00:55 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2011-01-24 22:00:55 +0000
commit7a6113d6b683ab671e2476910962fbfd5e689617 (patch)
tree8c984feab222fa6fd2e75751c577a206c544520c /ext/-test-
parent68823fdea5ea47cf056c95b4e45c48c66f55c157 (diff)
* string.c (rb_string_value_cstr): rb_str_modify can change
RSTRING_PTR. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30648 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/-test-')
-rw-r--r--ext/-test-/string/cstr.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/ext/-test-/string/cstr.c b/ext/-test-/string/cstr.c
new file mode 100644
index 0000000..d4ff360
--- /dev/null
+++ b/ext/-test-/string/cstr.c
@@ -0,0 +1,20 @@
+#include "ruby.h"
+
+static VALUE
+bug_str_cstr_term(VALUE str)
+{
+ long len;
+ char *s;
+ rb_str_modify(str);
+ len = RSTRING_LEN(str);
+ RSTRING_PTR(str)[len] = 'x';
+ s = StringValueCStr(str);
+ rb_gc();
+ return INT2NUM(s[len]);
+}
+
+void
+Init_cstr(VALUE klass)
+{
+ rb_define_method(klass, "cstr_term", bug_str_cstr_term, 0);
+}