c ++将字符串转换为十六进制
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c++ convert string to hex
提问by Homer
Possible Duplicate:
C++ convert hex string to signed integer
可能的重复：
C++ 将十六进制字符串转换为有符号整数
I allready searched on google but didn't find any help. So heres my problem: I have strings that allready contains hex code e.g.: string s1 = "5f0066" and i want to convert this string to hex. I need to compare the string with hex code i've read in a binary file.
我已经在谷歌上搜索过，但没有找到任何帮助。所以这是我的问题：我的字符串已经包含十六进制代码，例如：string s1 = "5f0066"，我想将此字符串转换为十六进制。我需要将字符串与我在二进制文件中读取的十六进制代码进行比较。
(Just need the basic idea how to convert the string) 5f Best regards and thanks.
（只需要了解如何转换字符串的基本思路） 5f 最好的问候和感谢。
Edit: Got the binary file info in the format of unsigned char. SO its 0x5f... WOuld like to have teh string in the same format
编辑：以无符号字符格式获取二进制文件信息。所以它的 0x5f ......希望有相同格式的字符串
回答by Nawaz
回答by Yochai Timmer
Use stringstreamand std::hex
std::stringstream str;
std::string s1 = "5f0066";
str << s1;
int value;
str >> std::hex >> value;
