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C++ std::function 和函数指针相比有啥区别吗?
函数指针 Vs std::function,一个追求零开销,一个拥抱灵活性。 前者是 C 的遗产,后者是 C++ 的契约。 选错一个,轻则多花几毫秒,重则触发堆分配,拖垮整个低延迟系统。 接下来我就详细的给你好好拆解一下,它们的区别到底在哪里。 一、一句话说清本质区别 函数指针:C ...
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