C ++扩展的Ascii字符 [英] C++ Extended Ascii characters

问题描述

如何检测C ++字符数组中是否存在扩展ASCII值(128至255).

How to detect the presence of Extended ASCII values (128 to 255) in a C++ character array.

推荐答案

请记住，没有扩展ASCII之类的东西. ASCII以前是且仅在0到127之间定义.以上所有内容均无效，或者需要采用ASCII以外的已定义编码(例如ISO-8859-1).

Please remember that there is no such thing as extended ASCII. ASCII was and is only defined between 0 and 127. Everything above that is either invalid or needs to be in a defined encoding other than ASCII (for example ISO-8859-1).

请阅读每个软件开发人员绝对绝对要了解Unicode和字符集的绝对最低要求(否借口！).

除此之外:遍历并检查任何大于127的值(或使用带符号的char时为< 0)有什么问题?

Other than that: what's wrong with iterating over it and check for any value > 127 (or <0 when using signed chars)?

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