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14 commits

Author SHA1 Message Date
asynts
b1fc8d2b38 AK: Span: Fix signature of copy_to() and copy_trimmed_to(). 
Two changes were made

 1. copy_to() and copy_trimmed_to() now return how many bytes were
    copied.

 2. The argument was changed to Span<typename RemoveConst<T>::Type>
    because the following would not work:

        ReadonlyBytes bytes0;
        Bytes bytes1;

        // Won't work because this calls Span<const u8>::copy_to(Span<u8>)
        // but the method was defined as Span<const u8>::copy_to(Span<const u8>)
        bytes0.copy_to(bytes1);
 2020-08-20 16:28:31 +02:00
asynts
df21487794 AK: Span: Allow slicing with zero length. 
Previously, the following would not work:

    Bytes{}.slice(0);

because it was asserted that `start < size()`.
 2020-08-20 16:28:31 +02:00
asynts
aef6f00195 AK: Always call memmove in Span instead of memcpy. 
https://github.com/SerenityOS/serenity/pull/3166#discussion_r471031704
 2020-08-17 00:00:14 +02:00
asynts
525d51bbb5 AK: Add slice() overload to Span. 2020-08-15 21:21:18 +02:00
asynts
36080c5964 AK: Add fill() method to Span. 2020-08-15 21:21:18 +02:00
asynts
78849bbb48 AK: Add copy_to() and move_to() methods to AK::Span. 2020-08-15 21:21:18 +02:00
asynts
d4fe63d2ce AK: Remove incorrect static assert in Span.h. 
This assertion was added to prevent accitentally using stuff like
Span<int*> instead of Span<int>. But there can be spans of pointers.
 2020-08-15 21:21:18 +02:00
AnotherTest
caedd05bd8 AK: Span<T>::operator=(const T&) => Span<T>::operator=(const Span<T>&) 2020-08-11 21:37:10 +02:00
asynts
5fa0fdb219 AK: Rename Span::subspan() to Span::slice(). 2020-07-27 19:58:09 +02:00
asynts
8d2dba022e AK: Add offset() method to Span. 2020-07-27 19:58:09 +02:00
asynts
c42450786c AK: Add implicit conversion from nullptr to Span. 2020-07-27 19:58:09 +02:00
asynts
2b57891e07 AK: Add constructors to Bytes and ReadonlyBytes that take void pointers. 2020-07-27 19:58:09 +02:00
asynts
7036a9b6f7 AK: Define conversion from Span<T> to Span<const T> correctly. 
I accidently wrote `Span<RemoveConst<T>>` when I meant
`Span<RemoveConst<T>::Type>`.

Changing that wouldn't be enough though, this constructor can only be
defined if T is not const, otherwise it would redefine the copy
constructor.  This can be avoided by overloading the cast operator.
 2020-07-27 19:58:09 +02:00
asynts
ac9c2bc492 AK: Implement Span which represents a contiguous sequence of objects. 
This makes it possible to pass one object rather than pointer and length
individually.
 2020-07-26 16:49:06 +02:00