# Synopsis

(macro) void mda_SetUnionType(void *union_fld, int type)

# Purpose

Set the union type of a union field.

# Description

The union field type is set to the specified type. The field type must be one of the #defines generated by ddc. For example, an entity declared as:

.RS 3 .nf entity 1:0 Line { union font { char fnum; ptr fdptr; }; float start[3]; float end[3]; }; .sp and instanced as: .sp T_LINE *line_ent; .sp would have its font field set to a font number (fnum) by calling: .sp mda_SetUnionType (&line_ent->font, FONT_FNUM); line_ent->font.u.fnum = SOLID; .fi .RE

# Input

## union_fld

The union field whose type is to be set

## type

Union type which the field is to be set to