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# List type - array backed list of elements
struct List {
~void data,
uint
count,
size,
_elsz
}
uint VECTOR_MIN_ELEMENTS = 4
uint VECTOR_MAX_GROW = 256
/; method Vector
/; init (uint elsz)
self._elsz = elsz
self.size = VECTOR_MIN_ELEMENTS
self.count = 0
self.data = _alloc(self.size * self._elsz)
;/
/; from_cstr(~uint8 cstr)
self.init(1)
self.push_cstr(cstr)
;/
/; _grow (uint i)
self.size = self.size + i
self.data = _realloc(self.data, self.size * self._elsz)
;/
/; get (uint index) [~void]
/; if (index !< self.count)
return NULL
;/
return self.data + index * self._elsz
;/
/; push (~void el)
/; if (self.size == self.count + 1)
/; if (self.size < VECTOR_MAX_GROW)
self._grow(self.size)
;; else
self._grow(VECTOR_MAX_GROW)
;/
;/
~void start = self.data + self.count * self._elsz
/; loop (int i = 0; i < self._elsz) [i++]
~uint8 to = start + i
~uint8 from = el + i
to` = from`
;/
self.count++
;/
/; replace (int index, ~void el)
~uint8 start = self.get(index)
/; if (start == NULL)
return
;/
/; loop (int i = 0; i < self._elsz) [i++]
~uint8 to = start + i
~uint8 from = el + i
to` = from`
;/
;/
/; _shrink(uint i)
/; if (i !< self.size)
self.size = 1
;; else
self.size = self.size - i
;/
self.data = _realloc(self.data, self.size * self._elsz)
;/
/; pop
self.remove(self.count - 1)
;/
/; remove (int index)
/; if (index < 0 || index !< self.count)
return
;/
/; if (self.count > 1)
/; loop (int i = index * self._elsz; i < (self.count - 1) * self._elsz) [i++]
~uint8 to = self.data + i
~uint8 from = self.data + i + self._elsz
to` = from`
;/
;/
self.count--
/; if (self.count < self.size / 2)
self._shrink(self.size / 3)
;/
;/
/; push_char (uint8 ch)
self.push(~ch)
;/
/; push_cstr(~uint8 ch)
/; loop (ch` !== 0) [ch++]
self.push(ch)
;/
;/
/; as_cstr [~uint8]
~uint8 z = self.data + self.count
z` = 0
return self.data
;/
/; end
self.count = 0
self.size = 0
self._elsz = 0
_delete(self.data)
;/
/; copy [Vector]
Vector out
out.init(self._elsz)
/; loop (int i = 0; i < self.count) [i++]
~int tmp = self.get(i)
out.push(tmp)
;/
return out
;/
/; back [~void]
/; if (self.count > 0)
return self.get(self.count - 1)
;/
return NULL
;/
;/
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