What is the volatile keyword in C++? Why is it critical in embedded systems?

What is the volatile keyword in C++? Why is it critical in embedded systems?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: medium

标签: interviewbit, cpp, topic-specific, c++, systems

参考答案摘要

The volatile keyword tells the compiler that a variable’s value may change at any time outside the program’s control. Because of this, the compiler must not optimize or cache the variable in a CPU reg...

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