Precedence
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{fH3}Operator Precedence{f}

Another situation where shift\/reduce conflicts appear is in arithmetic
expressions.  Here shifting is not always the preferred resolution; the
Bison declarations for operator precedence allow you to specify when to
shift and when to reduce.

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<Why Precedence=>WhyPrecede>:    An example showing why precedence is needed.
<Using Precedence=>UsingPrece>:  How to specify precedence in Bison grammars.
<Precedence Examples=>Precedencg>:  How these features are used in the previous example.
<How Precedence=>HowPrecede>:    How they work.
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