alg23.c

来自「C++ Primer(第三版)的随书源代码」· C语言 代码 · 共 38 行

// illustrates max(), min(), max_element(), min_element()

#include <algorithm>
#include <vector>
#include <iostream.h>
	
int main()
{
    int ia[] = { 7, 5, 2, 4, 3 };
    const vector< int, allocator > ivec( ia, ia+5 );
	 
    int mval = 
        max(max(max(max(ivec[4],ivec[3]),ivec[2]),ivec[1]),ivec[0]);
		
    // output: the result of nested invocations of max() is: 7
    cout << "the result of nested invocations of max() is: "
         << mval << endl;	

    mval = min(min(min(min(ivec[4],ivec[3]),ivec[2]),ivec[1]),ivec[0]);

    // output: the result of nested invocations of min() is: 2
    cout << "the result of nested invocations of min() is: "
         << mval << endl;	
		
    vector< int, allocator >::const_iterator iter;
    iter = max_element( ivec.begin(), ivec.end() );

    // output: the result of invoking max_element() is also: 7
    cout << "the result of invoking max_element() is also: "
         << *iter << endl;	
		
    iter = min_element( ivec.begin(), ivec.end() );

    // output: the result of invoking min_element() is also: 2
    cout << "the result of invoking min_element() is also: "
         << *iter << endl;
}