/*
* Tests for the token lsym_for, which represents the keyword 'for' that
* starts a 'for' loop.
*
* Most 'for' loops have 3 expressions in their head. Each of these
* expressions is optional though.
*
* When all 3 expressions are omitted, the 'for' loop is often called a
* 'forever' loop.
*/
//indent input
void
example(void)
{
for (;;)
break;
for (var = value;;)
break;
for (; cond;)
break;
for (;; i++)
break;
}
//indent end
//indent run-equals-input
//indent input
void
function(void)
{
for (int i = 0; i < 6; i++)
print_char("hello\n"[i]);
forever {
stmt();
}
}
//indent end
//indent run-equals-input
/*
* Indent can cope with various syntax errors, which may be caused by
* syntactic macros like 'forever' or 'foreach'.
*/
//indent input
#define forever for (;;)
#define foreach(list, it) for (it = list.first; it != NULL; it = it->next)
void
function(void)
{
forever
stmt();
forever {
stmt();
}
/* $ No space after 'foreach' since it looks like a function name. */
foreach(list, it)
println(it->data);
/* $ No space after 'foreach' since it looks like a function name. */
foreach(list, it) {
println(it->data);
}
}
//indent end
//indent run-equals-input
/*
* Another variant of a 'for' loop, seen in sys/arch/arm/apple/apple_intc.c.
*/
//indent input
{
for (CPU_INFO_FOREACH(cii, ci)) {
}
}
//indent end
//indent run-equals-input
/* Ensure that the '*' after 'list_item' is a unary operator. */
//indent input
{
for (const list_item *i = first; i != NULL; i = i->next) {
}
for (list_item **i = first; i != NULL; i = i->next) {
}
for (list_item *const *i = first; i != NULL; i = i->next) {
}
for (const char *const *i = first; i != NULL; i = i->next) {
}
}
//indent end
