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* string.c (rb_str_resize): reverted r28851. rb_str_resize cannot

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work before the length is set.  [ruby-core:31615]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28857 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2010-08-04 11:08:28 +00:00
parent 36044b0773
commit 5f13d888cf
5 changed files with 1 additions and 35 deletions
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5
ChangeLog
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@ -3,11 +3,6 @@ Wed Aug 4 19:37:00 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
* string.c (rb_str_set_len): rb_str_modify cannot work before the
length is set, which is a precondition for rb_str_modify.
Wed Aug 4 16:09:43 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
* string.c (rb_str_resize): should copy the content properly. a
patch from Jeremy Evans at [ruby-core:31615].
Wed Aug 4 15:47:21 2010 NAKAMURA Usaku <usa@ruby-lang.org>
* lib/mkmf.rb (create_makefile): no need to create the directory

16
ext/-test-/bug-3652/bug.c
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@ -1,16 +0,0 @@
#include <ruby.h>
static VALUE
bug_str_resize(VALUE self, VALUE init, VALUE repl)
{
long initlen = NUM2LONG(init);
VALUE s = rb_str_buf_new(initlen);
return rb_str_resize(s, strlcpy(RSTRING_PTR(s), StringValueCStr(repl), (size_t)initlen));
}
void
Init_bug(void)
{
VALUE mBug = rb_define_module("Bug");
rb_define_module_function(mBug, "str_resize", bug_str_resize, 2);
}

1
ext/-test-/bug-3652/extconf.rb
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@ -1 +0,0 @@
create_makefile("-test-/bug-3652/bug")

2
string.c
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@ -1723,7 +1723,7 @@ rb_str_resize(VALUE str, long len)
else if (len <= RSTRING_EMBED_LEN_MAX) {
char *ptr = RSTRING(str)->as.heap.ptr;
STR_SET_EMBED(str);
if (len > 0) MEMCPY(RSTRING(str)->as.ary, ptr, char, len);
if (slen > 0) MEMCPY(RSTRING(str)->as.ary, ptr, char, slen);
RSTRING(str)->as.ary[len] = '\0';
STR_SET_EMBED_LEN(str, len);
if (independent) xfree(ptr);

12
test/-ext-/test_bug-3652.rb
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@ -1,12 +0,0 @@
require 'test/unit'
require '-test-/bug-3652/bug'
class Test_BUG_3652 < Test::Unit::TestCase
def test_block_call_id
bug3652 = '[ruby-core:31615]'
s = "123456789012345678901234"
assert_equal(s, Bug.str_resize(127, s), bug3652)
s = "123456789"
assert_equal(s, Bug.str_resize(127, s), bug3652)
end
end