The le operator in the last element below is an example of a value comparison operator.
下面最后一个元素中的le运算符就是值比较运算符的一个例子。
std::pair has a comparison operator that does effectively the same comparisons as your version.
pair有一个比较运算符，跟你刚才写的那个一样。
The goal here is to avoid accidentally using the single-equals assignment operator instead of the double-equals comparison operator
目标在于避免意外地使用单等号赋值运算符而非双等号比较运算符
Determines validity by comparing a specific field in one control to a specific field in another control using a specifiable comparison operator.
使用可指定的比较运算符来比较某控件中的特定字段与另一控件中的特定字段，并以此来确定有效性。
Determines validity by comparing a specific field in one control to a specific field in another control using a specifiable comparison operator.
使用可指定的比较运算符来比较某控件中的特定字段与另一控件中的特定字段，并以此来确定有效性。
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