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Prevent overflows by increasing ring buffer size #33934

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May 29, 2016
Merged

Prevent overflows by increasing ring buffer size #33934

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4 changes: 2 additions & 2 deletions src/libsyntax/print/pp.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -159,9 +159,9 @@ pub struct PrintStackElem {
const SIZE_INFINITY: isize = 0xffff;

pub fn mk_printer<'a>(out: Box<io::Write+'a>, linewidth: usize) -> Printer<'a> {
// Yes 3, it makes the ring buffers big enough to never
// Yes 55, it makes the ring buffers big enough to never
// fall behind.
let n: usize = 3 * linewidth;
let n: usize = 55 * linewidth;
debug!("mk_printer {}", linewidth);
let token = vec![Token::Eof; n];
let size = vec![0; n];
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