[#OSSL_PARAM_get_double]
= OSSL&lowbar;PARAM&lowbar;get&lowbar;double
:mrdocs:

Read a floating&hyphen;point value from an OSSL&lowbar;PARAM into `val&period;`

== Synopsis

Declared in `&lt;openssl&sol;params&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
OSSL&lowbar;PARAM&lowbar;get&lowbar;double(
    xref:OSSL_PARAM.adoc[OSSL&lowbar;PARAM] const* p,
    double* val);
----

== Return Value

1 on success, or 0 on type&sol;size mismatch or other failure&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *p*
| Parameter of floating&hyphen;point type to read&period;
| *val*
| Receives the converted double value on success&period;
|===


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