C++ string 怎么保存二进制数据 不会截断

Question

C++ string 怎么保存二进制数据 不会截断

目前了解到的 有 
unsigned char 
std::vector<char>
string 目前 保存二进制的方法是用 push_back
string 不太稳定 。
string 听说还有其他 方法可以保存二进制数据  望指点。
std::vector<char> 用起来 挻不错的 
期待 更好更稳定的方法 谢谢.

Answer 1

You can use base64 to encode binary data into a string and save it.

Also std::bitsetbut it may not be what you want.

Answer 2

std::stringThere is no problem in saving binary, you must be using it incorrectly.

Answer 3

Suppose you have obtained a char * buffer and want to put it into a string, then you can do this:

string str(buf, buflen);

However, I don’t know what the benefit of doing this is. .

Answer 4

for binary buffer implementation, refer to the Slice in leveldb:
leveldb source code analysis Slice class

Answer 5

Thank you for your answers. This problem has been solved...I used string.append(content,size);