* Stores them in @dest and returns the number of bytes the output
* takes.
*/
-uns base64_encode(byte *dest, const byte *src, uns len);
+uint base64_encode(byte *dest, const byte *src, uint len);
/**
* Decodes @len bytes of data pointed to by @src from base64 encoding.
* All invalid characters are ignored. The result is stored into @dest
* and length of the result is returned.
*/
-uns base64_decode(byte *dest, const byte *src, uns len);
+uint base64_decode(byte *dest, const byte *src, uint len);
/**
* Use this macro to calculate @base64_encode() output buffer size.