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FoDatatype *
fo_number_new (void
);
Creates a new FoNumber initialized to default value.
FoDatatype *
fo_number_new_with_value (gdouble value
);
Creates a new FoNumber set to value
.
FoDatatype *
fo_number_get_number_one (void
);
Create and return an FoNumber with the well-known value 1.0.
This saves creation of multiple FoNumber objects that all have the value 1.0.