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The following table lists the overloadable C++ operators, the Proto tag types for each, and the name of the metafunctions for generating the corresponding Proto expression types. And as we'll see later, the metafunctions are also usable as grammars for matching such nodes, as well as pass-through transforms.
Table 1.6. Operators, Tags and Metafunctions
Operator |
Proto Tag |
Proto Metafunction |
---|---|---|
unary |
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|
unary |
|
|
unary |
|
|
unary |
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|
unary |
|
|
unary |
|
|
unary prefix |
|
|
unary prefix |
|
|
unary postfix |
|
|
unary postfix |
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|
binary |
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|
binary |
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binary |
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|
binary |
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|
binary |
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|
binary |
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|
binary |
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|
binary |
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|
binary |
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|
binary |
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|
binary |
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|
binary |
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|
binary |
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|
binary |
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binary |
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|
binary |
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|
binary |
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|
binary |
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|
binary |
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binary |
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|
binary |
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|
binary |
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binary |
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|
binary |
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|
binary |
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|
binary |
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|
binary |
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|
binary |
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|
binary |
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|
binary |
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binary |
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|
binary subscript |
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|
ternary |
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n-ary function call |
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