base64.h
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int base64_encode(size_t in_len, const unsigned char *in, size_t out_len, char *out)
encode binary data into base64 digits with MIME style === pads
const char * c_str() const
Get a constant (un-modifiable) pointer to String content.
Definition: WString.h:600
size_t length(void) const
Obtain the String length in characters, excluding NUL terminator.
Definition: WString.h:228
int base64_decode(size_t in_len, const char *in, size_t out_len, unsigned char *out)
decode base64 digits with MIME style === pads into binary data