Github user jbapple-cloudera commented on a diff in the pull request: https://github.com/apache/thrift/pull/1214#discussion_r106794729 --- Diff: lib/c_glib/src/thrift/c_glib/protocol/thrift_compact_protocol.c --- @@ -120,7 +120,11 @@ thrift_bitwise_cast_gdouble (const guint64 v) static guint64 i64_to_zigzag (const gint64 l) { - return (l << 1) ^ (l >> 63); --- End diff -- Negative input is expected: https://github.com/apache/thrift/blob/796667b29f91682871cec310571e66b1259fffb0/lib/cpp/src/thrift/protocol/TCompactProtocol.tcc#L385 Also, changing the input to unsigned would actually break this, because the right shift depends on being an arithmetic shift, not a logical one.
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