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Function std.base64.Base64Impl.decodeLength

Given a Base64 encoded string, calculates the length of the decoded string.

size_t decodeLength (
  in size_t sourceLength
) pure nothrow @safe;


sourceLength The length of the Base64 encoding.


The length of the decoded string corresponding to a Base64 encoding of length sourceLength.


auto encoded = "Gis8TV1u";

// Allocate a sufficiently large buffer to hold to decoded result.
auto buffer = new ubyte[Base64.decodeLength(encoded.length)];

Base64.decode(encoded, buffer);
writeln(buffer); // [0x1a, 0x2b, 0x3c, 0x4d, 0x5d, 0x6e]


Masahiro Nakagawa, Daniel Murphy (Single value Encoder and Decoder)


Boost License 1.0.