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@deftypefun {asn1_retCode} {asn1_number_of_elements} (ASN1_TYPE @var{element}, const char * @var{name}, int * @var{num})
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@var{element}: pointer to the root of an ASN1 structure.
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@var{name}: the name of a sub-structure of ROOT.
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@var{num}: pointer to an integer where the result will be stored
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Counts the number of elements of a sub-structure called NAME with
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names equal to "?1","?2", ...
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@strong{ASN1_SUCCESS:} Creation OK.
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@strong{ASN1_ELEMENT_NOT_FOUND:} NAME isn't known.
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@strong{ASN1_GENERIC_ERROR:} Pointer num equal to NULL.