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find

3rdParty/boost/1.78.0/libs/mpl/doc/refmanual/find.html

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find

Synopsis

template<
      typename Sequence
    , typename T
    >
struct[find](./find.html){
    typedef_unspecified_type;
};

Description

Returns an iterator to the first occurrence of type T in a Sequence.

#include <[boost/mpl/find.hpp](../../../../boost/mpl/find.hpp)>

Parameters

ParameterRequirementDescription
SequenceForward SequenceA sequence to search in.
TAny typeA type to search for.

Expression semantics

For any Forward Sequence s and arbitrary type t:

typedef[find](./find.html)<s,t>::type i;

| Return type: |

Forward Iterator.

| | Semantics: |

Equivalent to

typedef[find\_if](./find-if.html)<s, is_same<_,t> >::type i;

|

Complexity

Linear. At most size<s>::value comparisons for identity.

Example

typedef[vector](./vector.html)<char,int,unsigned,long,unsigned long> types;
typedef[find](./find.html)<types,unsigned>::type iter;[BOOST\_MPL\_ASSERT](./assert.html)(( is_same<[deref](./deref.html)<iter>::type, unsigned > ));[BOOST\_MPL\_ASSERT\_RELATION](./assert-relation.html)( iter::pos::value, ==, 2 );

See also

Querying Algorithms, contains, find_if, count, lower_bound

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Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |