Function conditional_stack_poke

src/fe_utils/conditional.c:105–112

* Change the state of the topmost branch. * Returns false if there was no branch state to set. */

 * Returns false if there was no branch state to set.
 */
bool
conditional_stack_poke(ConditionalStack cstack, ifState new_state)
{
	if (conditional_stack_empty(cstack))
		return false;
	cstack->head->if_state = new_state;
	return true;
}

/*
 * True if there are no active \if-blocks.