Example: Prepend a char

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

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

See: