比较运算符性能（>，> =，<< =） [英] Comparison operator performance (>, >=, <, <=)

问题描述

如果您要比较两个整数，运算符会对执行比较所需的时间有影响吗？例如，给定：

If you were to compare two integers, would the operator have an impact on the time required to perform the comparison? For example, given:

if (x < 60)

和

if (x <= 59)

这将提供最佳性能，还是性能差异可以忽略不计？性能结果是否取决于语言？

Which would provide the best performance, or would the performance difference be negligible? Are the performance results language-dependent?

我经常发现自己在我的代码中使用这些操作符。任何想法都会感激。

I often find myself mixing the use of these operators within my code. Any thoughts would be appreciated.

推荐答案

即使有明显的区别，我认为编译器足够聪明地处理这些事情。所以我的建议是使用使代码更容易理解，并将微优化留给编译器。

Even if there was noticeable difference, I think compilers are smart enough to care for such things. So my advice is to use what makes the code easier to understand, and leave micro-optimizations to the compiler.

这篇关于比较运算符性能（>，> =，<< =）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！