Function calcSizeUpperBound [src]
Return the maximum possible decoded size for a given input length - The actual length may be less if the input includes padding.
InvalidPadding is returned if the input length is not valid.
Prototype
pub fn calcSizeUpperBound(decoder_with_ignore: *const Base64DecoderWithIgnore, source_len: usize) Error!usize Parameters
decoder_with_ignore: *const Base64DecoderWithIgnoresource_len: usize Possible Errors
Source
pub fn calcSizeUpperBound(decoder_with_ignore: *const Base64DecoderWithIgnore, source_len: usize) Error!usize {
var result = source_len / 4 * 3;
if (decoder_with_ignore.decoder.pad_char == null) {
const leftover = source_len % 4;
result += leftover * 3 / 4;
}
return result;
}