find()、find_end()、find_first_of()、find_if()的使用示例和区别

http://blog.csdn.net/xqls_xqls/archive/2008/12/03/3437640.aspx

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#include #include #include #include #include using namespace std; int main(int argc,_TCHAR* argv[]) { //find_first_of()的使用 int nums1[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }; int* result1; int start = 0; int end = 10; int targets[] = { 9, 11, 7 }; result1 = find_first_of( nums1 + start, nums1 + end, targets + 0, targets + 2 ); if( *result1 == nums1[end] ) cout << "Did not find any of { 9, 11, 7 }" << endl; else cout << "Found a matching target: " << *result1 << endl; //find_end()的使用 int nums[] = { 11, 2, 3, 4, 1, 2, 3, 4, 11, 2, 3, 4 }; int* result; end = 11; int target1[] = { 1, 2, 3 }; result = find_end( nums + start, nums + end, target1 + 0, target1 + 2 ); if( *result == nums[end] ) cout << "Did not find any subsequence matching { 1, 2, 3 }" << endl; else cout << "The last matching subsequence is at: " << *result << endl; int target2[] = { 3, 2, 3 }; result = find_end( nums + start, nums + end, target2 + 0, target2 + 2 ); if( *result == nums[end] ) cout << "Did not find any subsequence matching { 3, 2, 3 }" << endl; else cout << "The last matching subsequence is at: " << *result << endl; //find()的使用 int num_to_find = 3; vector v1; for( int i = 0; i < 10; i++ ) v1.push_back(i); vector::iterator result2; result2 = find( v1.begin(), v1.end(), num_to_find ); if( result2 == v1.end() ) cout << "Did not find any element matching " << num_to_find << endl; else cout << "Found a matching element: " << *result2 << endl; //find_if()的使用 int nums3[] = { 0, -1, -2, -3, -4, 342, -5 }; start = 0; end = 7; result = find_if( nums3 + start, nums3 + end, bind2nd(greater(), 0)); if( *result == nums3[end] ) cout << "Did not find any number greater than zero" << endl; else cout << "Found a positive non-zero number: " << *result << endl; return 0; }