这个 比率(大于等于) 是C++中的一个内置函数,它检查比率R1是否大于或等于R2。如果比率大于或等于比率2,则返回True,否则返回false。
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语法:
template < class ratio1_name, class ratio2_name > ratio_greater_equal
模板参数 该函数接受两个模板参数 比率1 和 比率2 这些都是可以比较的。
返回值: 如果ratio1大于或等于ratio2,则函数返回布尔值,否则返回false。
以下程序说明了上述功能:
项目1:
// C++ program to illustrate the // ratio_greater_equal function // when both the ratios are equal #include <iostream> #include <ratio> using namespace std; int main() { typedef ratio<3, 9> ratio1; typedef ratio<1, 3> ratio2; // check if R1>=R2 if (ratio_greater_equal<ratio1, ratio2>::value) cout << "3/9 is greater than or equal to 1/3" ; else cout << "3/9 is less than 1/3" ; return 0; } |
输出:
3/9 is greater than or equal to 1/3
项目2:
// C++ program to illustrate the // ratio_greater_equal function // to show greater than #include <iostream> #include <ratio> using namespace std; int main() { typedef ratio<1, 2> ratio1; typedef ratio<1, 3> ratio2; // check if R1>=R2 if (ratio_greater_equal<ratio1, ratio2>::value) cout << "1/2 is greater than or equal to 1/3" ; else cout << "1/2 is less than 1/3" ; return 0; } |
输出:
1/2 is greater than or equal to 1/3
方案3:
// C++ program to illustrate the // ratio_greater_equal function // to show when less than #include <iostream> #include <ratio> using namespace std; int main() { typedef ratio<1, 10> ratio1; typedef ratio<1, 8> ratio2; // check if R1>=R2 if (ratio_greater_equal<ratio1, ratio2>::value) cout << "1/10 is greater than or equal to 1/8" ; else cout << "1/10 is less than 1/8" ; return 0; } |
输出:
1/10 is less than 1/8
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