Variant
Detailed Description
A holder of a runtime instantiated type. Used to provide runtime-specified images and views. 
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 Classes | 
| class | variant | 
|  | Represents a concrete instance of a run-time specified type from a set of types 
A concept is typically modeled by a collection of different types. They may be instantiations of a templated type with different template parameters or even completely unrelated types.  More...
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 Functions | 
| template<typename Types, typename UnaryOp> | 
| GIL_FORCEINLINE UnaryOp::result_type
 | apply_operation (variant< Types > &arg, UnaryOp op) | 
|  | Invokes a generic mutable operation (represented as a unary function object) on a variant. 
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| template<typename Types, typename UnaryOp> | 
| GIL_FORCEINLINE UnaryOp::result_type
 | apply_operation (const variant< Types > &arg, UnaryOp op) | 
|  | Invokes a generic constant operation (represented as a unary function object) on a variant. 
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| template<typename Types1, typename Types2, typename BinaryOp> | 
| GIL_FORCEINLINE BinaryOp::result_type
 | apply_operation (const variant< Types1 > &arg1, const variant< Types2 > &arg2, BinaryOp op) | 
|  | Invokes a generic constant operation (represented as a binary function object) on two variants. 
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