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* io.c (io_reopen): discards read buffer. [ruby-core:24240]

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24144 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2009-07-16 07:00:23 +00:00
parent 5e65d8f433
commit 53163f8138
2 changed files with 13 additions and 0 deletions
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3
io.c
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@ -5648,6 +5648,9 @@ io_reopen(VALUE io, VALUE nfile)
if (io_fflush(fptr) < 0)
rb_sys_fail(0);
}
else {
io_tell(fptr);
}
/* copy rb_io_t structure */
fptr->mode = orig->mode | (fptr->mode & FMODE_PREP);

10
test/ruby/test_io.rb
View file

@ -1270,6 +1270,16 @@ class TestIO < Test::Unit::TestCase
assert_equal("foo\n", f.gets)
}
end
open(__FILE__) do |f|
f.gets
f2 = open(t.path)
f2.gets
assert_nothing_raised {
f.reopen(f2)
assert_equal("bar\n", f.gets, '[ruby-core:24240]')
}
end
end
def test_foreach