[#PEM_write_X509_PUBKEY]
= PEM_write_X509_PUBKEY
:mrdocs:

Write an X.509 SubjectPublicKeyInfo to a FILE stream in PEM form.

== Synopsis

Declared in `<openssl/pem.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
PEM_write_X509_PUBKEY(
    FILE* fp,
    xref:X509_PUBKEY.adoc[X509_PUBKEY] const* x);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *fp*
| FILE to write to.
| *x*
| Public key to encode.
|===


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