Example: Append a char

public static int main (string[] args) {
// Output: ``hello, world!``
StringBuilder builder = new StringBuilder ("hello, ");
builder.append_c ('w').append_c ('o').append_c ('r').append_c ('l').append_c ('d').append_c ('!');
builder.append_c ('\n');
print (builder.str);
return 0;
}

 valac --pkg glib-2.0 GLib.StringBuilder.append_c.vala

See: