将“无符号字符*”转换为“字符*”(和字符串)

I am working on a pet project with the libsodium library, and found that converting unsigned char * to char * was less straight forward than I imagined. Also I first was confused because the tests were passing in Release mode and only bit later I realised they were not passing in Debug mode. So I came up with the following:I am working on a pet project with the libsodiu