[#absl-Base64Unescape]
= xref:absl.adoc[absl]::Base64Unescape
:relfileprefix: ../
:mrdocs:

Converts a `src` string encoded in Base64 (RFC 4648 section 4) to its binary equivalent, writing it to a `dest` buffer, returning `true` on success. If `src` contains invalid characters, `dest` is cleared and returns `false`. If padding is included (note that `Base64Escape()` does produce it), it must be correct. In the padding, '=' and '.' are treated identically.

== Synopsis

Declared in `<absl/strings/escaping.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
Base64Unescape(
    std::string_view src,
    std::string* dest);
----

== Return Value

`true` on success, `false` if `src` contains invalid characters.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *src*
| The base64‐encoded string to decode.
| *dest*
| The output string that receives the decoded bytes.
|===


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