Files
c3c/lib/std/sort/sort.c3
2024-07-08 21:02:49 +02:00

47 lines
1.1 KiB
C

module std::sort;
macro usz @len_from_list(&list)
{
$if $defined(list.len()):
return list.len();
$else
return list.len;
$endif
}
macro bool @is_sortable(#list)
{
$switch
$case !$defined(#list[0]):
return false;
$case !$defined(#list.len):
return false;
$case $and($defined(&#list[0]) && !types::is_same($typeof(&#list[0]), $typeof(#list[0])*)):
return false;
$default:
return true;
$endswitch;
}
macro bool @is_cmp_fn(#cmp, #list)
{
var $Type = $typeof(#cmp);
$switch
$case $or($Type.kindof != FUNC, $Type.returns.kindof != SIGNED_INT): return false;
$case $defined(#cmp(#list[0], #list[0])): return true;
$case $defined(#cmp(&&(#list[0]), &&(#list[0]))): return true;
$default: return false;
$endswitch
}
macro bool @is_cmp_key_fn(#key_fn, #list)
{
$switch
$case $typeof(#key_fn).kindof != FUNC: return false;
$case $typeof(#key_fn).returns.kindof != UNSIGNED_INT: return false;
$case $defined(#key_fn(#list[0])): return true;
$case $defined(#key_fn(&&(#list[0]))): return true;
$default: return false;
$endswitch
}