[#buf_mem_st-length]
= xref:buf_mem_st.adoc[buf_mem_st]::length
:relfileprefix: ../
:mrdocs:

Current number of valid content bytes stored in `data.`

== Synopsis

Declared in `<openssl/buffer.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
size_t length;
----


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