符号整数网络和主机的转换 [英] Signed Integer Network and Host Conversion

问题描述

我想从主机字节顺序到网络字节顺序，反之亦然转换 int32_t 。我知道关于 htonl（）函数及其变种，但是这需要无符号整数。有没有一个标准库函数，可以做同样的符号整数或做我要实现它自己？如果我要实现它自己，我应该怎么办呢？

I would like to convert a int32_t from host byte order to network byte order and vice versa. I know about the htonl() function and its variants, but this takes unsigned integers. Is there a standard library function which can do the same with signed integers or do I have to implement it myself? And if I have to implement it myself, how should I do it?

我希望找到一个例程将在Linux和Mac OS X上运行。

I'm looking to find a routine that will work on Linux and Mac OS X.

推荐答案

没关系。 htonl关注的是字节，而不是用数字的算术值。使用reinter pret_cast再次改变为无符号和后面的电话号码，如果你不得不这样做。

It does not matter. htonl is concerned with bytes, not with arithmetical value of the number. Use reinterpret_cast to change the number to unsigned and back again, if you have to.

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