无符号字符数组，用于键入stl :: map或其他容器

Question

I try to make a map like

 map<unsigned char[16], string> testMap;

And unsigned char[16] looks not suitable type for key map.

but in my key have NULL, so I can't use string for key..

example key:

 01 bc 03 00 50 03 00 00 89 00 10 00 ff ff ff ff

this kind of key also can use map.find() ?

Or Is there any other good container for me?

THANKS :)

Answer 1

Use the std::string constructor that builds the string from a char array (not a C-String). This takes two parameters - a pointer to the array and a length:

std::string x("pq\\0rs"); // Two characters because input assumed to be C-String std::string x("pq\\0rs",5); // 5 Characters as the input is now a char array with 5 characters.

This allows for embedded null characters.

Answer 2

Use STL vector instead of unsigned char array

NOTE:

If you are using c++11 and have fixed length of characters,use std::array. If you don't have fixed length or are not using C++11 or above go for std::vector