Boost C++ Libraries

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make_set

Description

Create a set from one or more values.

Synopsis

template <typename T0, typename T1,... typename TN>
typename result_of::make_set<T0, T1,... TN>::type
make_set(T0 const& x0, T1 const& x1... TN const& xN);

The variadic function accepts 0 to FUSION_MAX_VECTOR_SIZE ^[9] elements, where FUSION_MAX_VECTOR_SIZE is a user definable predefined maximum that defaults to 10. You may define the preprocessor constant FUSION_MAX_VECTOR_SIZE before including any Fusion header to change the default. Example:

#define FUSION_MAX_VECTOR_SIZE 20

Parameters

Parameter	Requirement	Description
`x0, x1,... xN`	Instances of `T0, T1,... TN`	The arguments to `make_set`

Expression Semantics

make_set(x0, x1,... xN);

Return type: result_of::make_set<T0, T1,... TN>::type

Semantics: Create a set from x0, x1,... xN.

Precondition: There may be no duplicate key types.

Header

#include <boost/fusion/container/generation/make_set.hpp>
#include <boost/fusion/include/make_set.hpp>

Example

make_set(123, "hello", 12.5)

See also

^[9] set is implemented in terms of the vector. That is why we reuse FUSION_MAX_VECTOR_SIZE