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package container
Small_Array :: struct($N: int, $T: typeid) where N >= 0 {
data: [N]T,
len: int,
}
small_array_len :: proc(a: $A/Small_Array) -> int {
return a.len;
}
small_array_cap :: proc(a: $A/Small_Array) -> int {
return len(a.data);
}
small_array_space :: proc(a: $A/Small_Array) -> int {
return len(a.data) - a.len;
}
small_array_slice :: proc(a: ^$A/Small_Array($N, $T)) -> []T {
return a.data[:a.len];
}
small_array_get :: proc(a: $A/Small_Array($N, $T), index: int, loc := #caller_location) -> T {
return a.data[index];
}
small_array_get_ptr :: proc(a: $A/Small_Array($N, $T), index: int, loc := #caller_location) -> ^T {
return &a.data[index];
}
small_array_set :: proc(a: ^$A/Small_Array($N, $T), index: int, item: T, loc := #caller_location) {
a.data[index] = item;
}
small_array_resize :: proc(a: ^$A/Small_Array, length: int) {
a.len = min(length, len(a.data));
}
small_array_push_back :: proc(a: ^$A/Small_Array($N, $T), item: T) -> bool {
if a.len < len(a.data) {
a.len += 1;
a.data[a.len-1] = item;
return true;
}
return false;
}
small_array_push_front :: proc(a: ^$A/Small_Array($N, $T), item: T) -> bool {
if a.len < len(a.data) {
a.len += 1;
data := small_array_slice(a);
copy(data[1:], data[:]);
data[0] = item;
return true;
}
return false;
}
small_array_pop_back :: proc(a: ^$A/Small_Array($N, $T), loc := #caller_location) -> T {
assert(condition=a.len > 0, loc=loc);
item := a.data[a.len-1];
a.len -= 1;
return item;
}
small_array_pop_front :: proc(a: ^$A/Small_Array($N, $T), loc := #caller_location) -> T {
assert(condition=a.len > 0, loc=loc);
item := a.data[0];
s := small_array_slice(a);
copy(s[:], s[1:]);
a.len -= 1;
return item;
}
small_array_consume :: proc(a: ^$A/Small_Array($N, $T), count: int, loc := #caller_location) {
assert(condition=a.len >= count, loc=loc);
a.len -= count;
}
small_array_clear :: proc(a: ^$A/Small_Array($N, $T)) {
small_array_resize(a, 0);
}
small_array_push_back_elems :: proc(a: ^$A/Small_Array($N, $T), items: ..T) {
n := copy(a.data[a.len:], items[:]);
a.len += n;
}
small_array_push :: proc{small_array_push_back, small_array_push_back_elems};
small_array_append :: proc{small_array_push_back, small_array_push_back_elems};
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