rust git grep utf8/utf16 allocations

gistfile1.txt

~/code/rust/rust$ git grep '\[0; 2\]'
src/libcore/tests/char.rs:        let mut buf = [0; 2];
src/libpanic_unwind/seh.rs:    [0; 2]
src/librustc_apfloat/ieee.rs:                let mut wide_sig = [0; 2];
src/librustc_data_structures/blake2b.rs:        t: [0; 2],
src/libstd/sys/redox/pipe.rs:    let mut fds = [0; 2];
src/libstd/sys/unix/pipe.rs:    let mut fds = [0; 2];
src/libstd/sys_common/wtf8.rs:        let mut buf = [0; 2];
src/libstd_unicode/char.rs:    /// let mut b = [0; 2];
src/libstd_unicode/char.rs:    /// let mut b = [0; 2];
src/libstd_unicode/u_str.rs:        let mut buf = [0; 2];
src/libterm/terminfo/parser/compiled.rs:    let mut b = [0; 2];
src/test/compile-fail/simd-intrinsic-generic-elements.rs:        simd_shuffle2::<i32, i32>(0, 0, [0; 2]);
src/test/compile-fail/simd-intrinsic-generic-elements.rs:        simd_shuffle2::<_, f32x2>(x, x, [0; 2]);
src/test/compile-fail/simd-intrinsic-generic-elements.rs:        simd_shuffle2::<_, i32x8>(x, x, [0; 2]);
src/test/run-pass/issue-30490.rs:     let mut fds = [0; 2];

~/code/rust/rust$ git grep '\[0; 4\]'
src/liballoc/string.rs:            _ => self.vec.extend_from_slice(ch.encode_utf8(&mut [0; 4]).as_bytes()),
src/liballoc/string.rs:        let mut bits = [0; 4];
src/liballoc/tests/str.rs:    let mut bytes = [0; 4];
src/liballoc/tests/str.rs:    let mut bytes = [0; 4];
src/libcore/fmt/mod.rs:        self.write_str(c.encode_utf8(&mut [0; 4]))
src/libcore/fmt/mod.rs:                f.buf.write_str(c.encode_utf8(&mut [0; 4]))?;
src/libcore/fmt/mod.rs:        let mut fill = [0; 4];
src/libcore/fmt/mod.rs:            f.pad(self.encode_utf8(&mut [0; 4]))
src/libcore/intrinsics.rs:    /// let mut vec = vec![0; 4];
src/libcore/ptr.rs:    /// let mut vec = vec![0; 4];
src/libcore/tests/char.rs:        let mut buf = [0; 4];
src/libserialize/json.rs:    escape_str(writer, v.encode_utf8(&mut [0; 4]))
src/libstd/fs.rs:        let mut read_mem = [0; 4];
src/libstd/fs.rs:        let mut read_mem = [0; 4];
src/libstd/fs.rs:        let mut mem = [0; 4];
src/libstd/io/cursor.rs:        let mut buf = [0; 4];
src/libstd/io/cursor.rs:        let mut buf = [0; 4];
src/libstd/io/cursor.rs:        let mut buf = [0; 4];
src/libstd/io/cursor.rs:        let mut buf = [0; 4];
src/libstd/io/mod.rs:        let mut buf = [0; 4];
src/libstd/io/mod.rs:        let mut buf = [0; 4];
src/libstd/io/mod.rs:        assert_eq!(&buf, &[0; 4]);
src/libstd/net/parser.rs:        let mut bs = [0; 4];
src/libstd/rand/reader.rs:        let mut bytes = [0; 4];
src/libstd/sys/unix/rand.rs:    let mut buf: [u8; 4] = [0; 4];
src/libstd/sys/windows/rand.rs:        let mut v = [0; 4];
src/libstd/sys_common/wtf8.rs:        let mut bytes = [0; 4];
src/test/compile-fail/simd-intrinsic-generic-elements.rs:        simd_shuffle4::<i32, i32>(0, 0, [0; 4]);
src/test/compile-fail/simd-intrinsic-generic-elements.rs:        simd_shuffle4::<_, f32x4>(x, x, [0; 4]);
src/test/compile-fail/simd-intrinsic-generic-elements.rs:        simd_shuffle4::<_, i32x3>(x, x, [0; 4]);
src/test/run-pass/auxiliary/issue-31702-1.rs:        let mut ret = [0; 4];
src/test/run-pass/iter-zip.rs:    let mut ys = [0; 4];
src/test/run-pass/iter-zip.rs:    let mut xs = [0; 4];
src/test/run-pass/iter-zip.rs:    let mut ys = [0; 4];
src/test/run-pass/iter-zip.rs:    let mut ys = [0; 4];
src/test/run-pass/iter-zip.rs:    let ys = [0; 4];
src/tools/remote-test-client/src/main.rs:                let mut b = [0; 4];
src/tools/remote-test-client/src/main.rs:    let mut buf = [0; 4];
src/tools/remote-test-server/src/main.rs:        let mut buf = [0; 4];
src/tools/remote-test-server/src/main.rs:    let mut len = [0; 4];