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Assert at BUFFER_LEN + 1 since our buffers are offset #2

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Merged
merged 1 commit into from
Sep 22, 2017
Merged

Assert at BUFFER_LEN + 1 since our buffers are offset #2

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2 changes: 1 addition & 1 deletion Cargo.toml
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
[package]
name = "dtoa-short"
version = "0.3.0"
version = "0.3.1"
authors = ["Xidorn Quan <me@upsuper.org>"]

description = "Serialize float number and truncate to certain precision"
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2 changes: 1 addition & 1 deletion src/lib.rs
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Expand Up @@ -68,7 +68,7 @@ fn write_with_prec<W, V>(dest: &mut W, value: V, prec: usize)

fn restrict_prec(buf: &mut [u8], prec: usize) -> (&[u8], Notation) {
let len = buf.len();
debug_assert!(len <= BUFFER_SIZE, "dtoa may have changed its buffer size");
debug_assert!(len <= BUFFER_SIZE + 1, "dtoa may have changed its buffer size");
// Put a leading zero to capture any carry.
debug_assert!(buf[0] == b'\0', "Caller must prepare an empty byte for us");
buf[0] = b'0';
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2 changes: 2 additions & 0 deletions tests/basic.rs
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Expand Up @@ -132,4 +132,6 @@ fn exponent_part_handling() {
assert_expected_serialization(-9.999999e30_f32, "-10e30");
assert_expected_serialization(9.999999e-30_f32, "10e-30");
assert_expected_serialization(-9.999999e-30_f32, "-10e-30");
// Regression test for assertion failure (https://bugzilla.mozilla.org/show_bug.cgi?id=1402419)
assert_expected_serialization(-8192e17_f32, "-819200000000000000000");
}