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Fix handling of clear with offset and without length.

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This commit is contained in:
Samuel Williams 2021-12-20 21:22:28 +13:00
parent c86bcd434d
commit 2de5dc539b
Notes: git 2021-12-21 08:26:07 +09:00 
Merged: https://github.com/ruby/ruby/pull/5303
1 changed files with 3 additions and 1 deletions
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4
io_buffer.c
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@ -1180,9 +1180,11 @@ io_buffer_clear(int argc, VALUE *argv, VALUE self)
offset = NUM2SIZET(argv[1]); offset = NUM2SIZET(argv[1]);
} }
size_t length = data->size; size_t length;
if (argc >= 3) { if (argc >= 3) {
length = NUM2SIZET(argv[2]); length = NUM2SIZET(argv[2]);
} else {
length = data->size - offset;
} }
rb_io_buffer_clear(self, value, offset, length); rb_io_buffer_clear(self, value, offset, length);