📅  最后修改于: 2020-10-17 06:04:00             🧑  作者: Mango
C++ bitset any()函数用于测试是否至少设置了bitset中的一位。它返回一个布尔值,即true或false。
bool any();
它不带任何参数。
它返回布尔值0或1。
#include
#include
using namespace std;
int main()
{
// initialization
bitset<4> b1(string("1100"));
bitset<6> b2(string("000000"));
// function to check if any of
// its bits are set or not
bool result1 = b1.any();
if (result1)
cout<< b1 << " has a minimum of one-bit set"
<
输出:
1100 has a minimum of one-bit set
000000 does not have any bits set
#include
#include
using namespace std;
int main()
{
bitset<4> b1(string("1100"));
bitset<4> b2(string("00"));
bool result1 = b1.any();
if (result1)
cout<< b1.count() << " has a minimum of one-bit set"
<
输出:
2 has a minimum of one-bit set
0 does not have any bits set