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Fix off-by-one mistake, explain the offset

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This commit is contained in:
Ben Kimock 2021-03-22 18:39:24 -04:00
parent 8bb07b0743
commit 4114e90bac
1 changed files with 2 additions and 1 deletions
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3
serde/src/ser/impls.rs
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@ -725,7 +725,8 @@ impl Serialize for net::Ipv4Addr {
let mut buf = [b'.'; MAX_LEN]; let mut buf = [b'.'; MAX_LEN];
let mut written = format_u8(self.octets()[0], &mut buf); let mut written = format_u8(self.octets()[0], &mut buf);
for oct in &self.octets()[1..] { for oct in &self.octets()[1..] {
written += format_u8(*oct, &mut buf[written..]) + 1; // Skip over delimiters that we initialized buf with
written += format_u8(*oct, &mut buf[written + 1..]) + 1;
} }
// We've only written ASCII bytes to the buffer, so it is valid UTF-8 // We've only written ASCII bytes to the buffer, so it is valid UTF-8
serializer.serialize_str(unsafe { str::from_utf8_unchecked(&buf[..written]) }) serializer.serialize_str(unsafe { str::from_utf8_unchecked(&buf[..written]) })