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この記事は機械翻訳されたものです。 記事の文章にポインターを重ねると、原文のテキストが表示されます。 詳細情報
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訳文
原文
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upper_bound
template<class ForwardIterator, class Type>
ForwardIterator upper_bound(
ForwardIterator _First,
ForwardIterator _Last,
const Type& _Val
);
template<class ForwardIterator, class Type, class Predicate>
ForwardIterator upper_bound(
ForwardIterator _First,
ForwardIterator _Last,
const Type& _Val,
Predicate _Comp
);
// alg_upper_bound.cpp
// compile with: /EHsc
#include <vector>
#include <algorithm>
#include <functional> // For greater<int>( )
#include <iostream>
// Return whether modulus of elem1 is less than modulus of elem2
bool mod_lesser ( int elem1, int elem2 )
{
if ( elem1 < 0 )
elem1 = - elem1;
if ( elem2 < 0 )
elem2 = - elem2;
return elem1 < elem2;
}
int main( )
{
using namespace std;
vector <int> v1;
vector <int>::iterator Iter1, Result1;
// Constructing vectors v1a & v1b with default less-than ordering
int i;
for ( i = -1 ; i <= 4 ; i++ )
{
v1.push_back( i );
}
int ii;
for ( ii =-3 ; ii <= 0 ; ii++ )
{
v1.push_back( ii );
}
sort ( v1.begin ( ) , v1.end ( ) );
cout << "Original vector v1 with range sorted by the\n "
<< "binary predicate less than is v1 = ( " ;
for ( Iter1 = v1.begin( ) ; Iter1 != v1.end( ) ; Iter1++ )
cout << *Iter1 << " ";
cout << ")." << endl;
// Constructing vectors v2 with range sorted by greater
vector <int> v2 ( v1 );
vector <int>::iterator Iter2, Result2;
sort ( v2.begin ( ) , v2.end ( ) , greater<int> ( ) );
cout << "Original vector v2 with range sorted by the\n "
<< "binary predicate greater is v2 = ( " ;
for ( Iter2 = v2.begin ( ) ; Iter2 != v2.end ( ) ; Iter2++ )
cout << *Iter2 << " ";
cout << ")." << endl;
// Constructing vectors v3 with range sorted by mod_lesser
vector <int> v3 ( v1 );
vector <int>::iterator Iter3, Result3;
sort ( v3.begin ( ) , v3.end ( ) , mod_lesser );
cout << "Original vector v3 with range sorted by the\n "
<< "binary predicate mod_lesser is v3 = ( " ;
for ( Iter3 = v3.begin ( ) ; Iter3 != v3.end ( ) ; Iter3++ )
cout << *Iter3 << " ";
cout << ")." << endl;
// upper_bound of 3 in v1 with default binary predicate less <int> ( )
Result1 = upper_bound ( v1.begin ( ) , v1.end ( ) , 3 );
cout << "The upper_bound in v2 for the element with a value of 3 is: "
<< *Result1 << "." << endl;
// upper_bound of 3 in v2 with the binary predicate greater <int> ( )
Result2 = upper_bound ( v2.begin ( ) , v2.end ( ) , 3, greater <int> ( ) );
cout << "The upper_bound in v2 for the element with a value of 3 is: "
<< *Result2 << "." << endl;
// upper_bound of 3 in v3 with the binary predicate mod_lesser
Result3 = upper_bound ( v3.begin ( ) , v3.end ( ) , 3,mod_lesser );
cout << "The upper_bound in v3 for the element with a value of 3 is: "
<< *Result3 << "." << endl;
}
v1 は = されるよりも小さいバイナリ述語によって分類される範囲を持つ元の v1 ベクター (-3 -2 -1 -1 0 0 1 2 3 4)。 より大きいバイナリ述語によって分類される範囲を持つ元のベクター v2 は v2 = (4 3 2 1 0 0 -1 -1 -2 -3)。 バイナリ述語の mod_lesser で並べ替えて範囲を持つ元のベクター v3 は v3 = (0 0 -1 -1 1 -2 3 3 4 2-)。 3 の値を持つ要素の v2 の upper_bound は次のとおりです: 4。 3 の値を持つ要素の v2 の upper_bound は次のとおりです: 2。 3 の値を持つ要素の v3 の upper_bound は次のとおりです: 4。
