tt_otype_deriveds_count(3)

NAME
     tt_otype_deriveds_count - return the number of otypes derived from an
     otype

SYNOPSIS
     #include <Tt/tt_c.h>
     int tt_otype_deriveds_count(const char *otype);

DESCRIPTION
     The tt_otype_deriveds_count() function returns the number of otypes
     derived from the given otype.

     The otype argument is the object type involved in this operation.

RETURN VALUE
     Upon successful completion, the tt_otype_deriveds_count() function
     returns the number of otypes derived from the given otype.  The
     application can use tt_int_error(3) to extract one of the following
     Tt_status values from the returned integer:

        TT_OK   The operation completed successfully.

        TT_ERR_NOMP
                The ttsession(1) process is not running and the ToolTalk
                service cannot restart it.

        TT_ERR_OTYPE
                The specified object type is not the name of an installed
                object type.

SEE ALSO
     Tttt_c(5), tt_otype_is_derived(3), tt_otype_base(3), tt_otype_derived(3),
     tt_spec_type(3), tt_message_otype(3), tt_int_error(3).