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author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-01-24 22:00:55 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-01-24 22:00:55 +0000 |
commit | 7a6113d6b683ab671e2476910962fbfd5e689617 (patch) | |
tree | 8c984feab222fa6fd2e75751c577a206c544520c /ext/-test-/string/cstr.c | |
parent | 68823fdea5ea47cf056c95b4e45c48c66f55c157 (diff) | |
download | ruby-7a6113d6b683ab671e2476910962fbfd5e689617.tar.gz |
* 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-/string/cstr.c')
-rw-r--r-- | ext/-test-/string/cstr.c | 20 |
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 0000000000..d4ff360575 --- /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); +} |