[#PEM_write_ECPKParameters]
= PEM_write_ECPKParameters
:mrdocs:

Write EC domain parameters (ECPKParameters) to a FILE in PEM form (deprecated).

== Synopsis

Declared in `<openssl/pem.h>`

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

[WARNING]
====
https://en.cppreference.com/cpp/language/attributes/deprecated[Deprecated^]. Use of this entity is allowed but discouraged.
====
== Return Value

1 on success, or 0 on failure.

== Parameters

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


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