Include the minus sign in the same buffer, to only make a single write_all call.
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parent
678a4b4524
commit
220a8680ca
11
src/lib.rs
11
src/lib.rs
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@ -37,7 +37,6 @@ macro_rules! impl_Integer {
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let mut n = if is_nonnegative {
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self as $conv_fn
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} else {
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try!(wr.write_all(b"-"));
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// convert the negative num to positive by summing 1 to it's 2 complement
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(!(self as $conv_fn)).wrapping_add(1)
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};
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@ -81,13 +80,15 @@ macro_rules! impl_Integer {
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curr -= 2;
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ptr::copy_nonoverlapping(lut_ptr.offset(d1), buf_ptr.offset(curr), 2);
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}
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if !is_nonnegative {
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curr -= 1;
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*buf_ptr.offset(curr) = b'-';
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}
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}
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let mut len = buf.len() - curr as usize;
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let len = buf.len() - curr as usize;
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try!(wr.write_all(unsafe { slice::from_raw_parts(buf_ptr.offset(curr), len) }));
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if !is_nonnegative {
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len += 1;
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}
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Ok(len)
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}
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})*);
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@ -19,6 +19,7 @@ test!(
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test_0u64(0u64, "0"),
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test_HALFu64(<u32>::max_value() as u64, "4294967295"),
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test_MAXu64(<u64>::max_value(), "18446744073709551615"),
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test_MINi64(<i64>::min_value(), "-9223372036854775808"),
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test_0i16(0i16, "0"),
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test_MINi16(<i16>::min_value(), "-32768"),
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