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{
return data;
}
- (void*)item: (size_t)item
{
if (item >= items)
[[OFOutOfRangeException newWithObject: self] raise];
@throw [OFOutOfRangeException newWithObject: self];
return data + item * itemsize;
}
- (void*)last
{
return data + (items - 1) * itemsize;
}
- add: (void*)item
{
if (SIZE_MAX - items < 1)
[[OFOutOfRangeException newWithObject: self] raise];
@throw [OFOutOfRangeException newWithObject: self];
data = [self resizeMem: data
toNItems: items + 1
ofSize: itemsize];
memcpy(data + items++ * itemsize, item, itemsize);
return self;
}
- addNItems: (size_t)nitems
fromCArray: (void*)carray
{
if (nitems > SIZE_MAX - items)
[[OFOutOfRangeException newWithObject: self] raise];
@throw [OFOutOfRangeException newWithObject: self];
data = [self resizeMem: data
toNItems: items + nitems
ofSize: itemsize];
memcpy(data + items * itemsize, carray, nitems * itemsize);
items += nitems;
return self;
}
- removeNItems: (size_t)nitems
{
if (nitems > items)
[[OFOutOfRangeException newWithObject: self] raise];
@throw [OFOutOfRangeException newWithObject: self];
data = [self resizeMem: data
toNItems: items - nitems
ofSize: itemsize];
items -= nitems;
|
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}
- add: (void*)item
{
size_t nsize;
if (SIZE_MAX - items < 1 || items + 1 > SIZE_MAX / itemsize)
[[OFOutOfRangeException newWithObject: self] raise];
@throw [OFOutOfRangeException newWithObject: self];
nsize = ((items + 1) * itemsize + lastpagebyte) & ~lastpagebyte;
if (size != nsize)
data = [self resizeMem: data
toSize: nsize];
memcpy(data + items++ * itemsize, item, itemsize);
size = nsize;
return self;
}
- addNItems: (size_t)nitems
fromCArray: (void*)carray
{
size_t nsize;
if (nitems > SIZE_MAX - items || items + nitems > SIZE_MAX / itemsize)
[[OFOutOfRangeException newWithObject: self] raise];
@throw [OFOutOfRangeException newWithObject: self];
nsize = ((items + nitems) * itemsize + lastpagebyte) & ~lastpagebyte;
if (size != nsize)
data = [self resizeMem: data
toSize: nsize];
memcpy(data + items * itemsize, carray, nitems * itemsize);
items += nitems;
size = nsize;
return self;
}
- removeNItems: (size_t)nitems
{
size_t nsize;
if (nitems > items)
[[OFOutOfRangeException newWithObject: self] raise];
@throw [OFOutOfRangeException newWithObject: self];
nsize = ((items - nitems) * itemsize + lastpagebyte) & ~lastpagebyte;
if (size != nsize)
data = [self resizeMem: data
toSize: nsize];
items -= nitems;
size = nsize;
return self;
}
@end
|