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many-archive
Suyu
Commits
89c15dd1
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Commit
89c15dd1
authored
4 years ago
by
ReinUsesLisp
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common/alignment: Upgrade to use constraints instead of static asserts
parent
fe494a0c
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src/common/alignment.h
+9
-13
9 additions, 13 deletions
src/common/alignment.h
with
9 additions
and
13 deletions
src/common/alignment.h
+
9
−
13
View file @
89c15dd1
...
...
@@ -9,8 +9,7 @@
namespace
Common
{
template
<
typename
T
>
[[
nodiscard
]]
constexpr
T
AlignUp
(
T
value
,
std
::
size_t
size
)
{
static_assert
(
std
::
is_unsigned_v
<
T
>
,
"T must be an unsigned value."
);
requires
std
::
is_unsigned_v
<
T
>
[[
nodiscard
]]
constexpr
T
AlignUp
(
T
value
,
size_t
size
)
{
auto
mod
{
static_cast
<
T
>
(
value
%
size
)};
value
-=
mod
;
return
static_cast
<
T
>
(
mod
==
T
{
0
}
?
value
:
value
+
size
);
...
...
@@ -22,36 +21,33 @@ requires std::is_unsigned_v<T>[[nodiscard]] constexpr T AlignUpLog2(T value, siz
}
template
<
typename
T
>
[[
nodiscard
]]
constexpr
T
AlignDown
(
T
value
,
std
::
size_t
size
)
{
static_assert
(
std
::
is_unsigned_v
<
T
>
,
"T must be an unsigned value."
);
requires
std
::
is_unsigned_v
<
T
>
[[
nodiscard
]]
constexpr
T
AlignDown
(
T
value
,
size_t
size
)
{
return
static_cast
<
T
>
(
value
-
value
%
size
);
}
template
<
typename
T
>
[[
nodiscard
]]
constexpr
bool
Is4KBAligned
(
T
value
)
{
static_assert
(
std
::
is_unsigned_v
<
T
>
,
"T must be an unsigned value."
);
requires
std
::
is_unsigned_v
<
T
>
[[
nodiscard
]]
constexpr
bool
Is4KBAligned
(
T
value
)
{
return
(
value
&
0xFFF
)
==
0
;
}
template
<
typename
T
>
[[
nodiscard
]]
constexpr
bool
IsWordAligned
(
T
value
)
{
static_assert
(
std
::
is_unsigned_v
<
T
>
,
"T must be an unsigned value."
);
requires
std
::
is_unsigned_v
<
T
>
[[
nodiscard
]]
constexpr
bool
IsWordAligned
(
T
value
)
{
return
(
value
&
0b11
)
==
0
;
}
template
<
typename
T
>
[[
nodiscard
]]
constexpr
bool
IsAligned
(
T
value
,
std
::
size_t
alignment
)
{
using
U
=
typename
std
::
make_unsigned
<
T
>
::
type
;
requires
std
::
is_integral_v
<
T
>
[[
nodiscard
]]
constexpr
bool
IsAligned
(
T
value
,
size_t
alignment
)
{
using
U
=
typename
std
::
make_unsigned
_t
<
T
>
;
const
U
mask
=
static_cast
<
U
>
(
alignment
-
1
);
return
(
value
&
mask
)
==
0
;
}
template
<
typename
T
,
std
::
size_t
Align
=
16
>
template
<
typename
T
,
size_t
Align
=
16
>
class
AlignmentAllocator
{
public:
using
value_type
=
T
;
using
size_type
=
std
::
size_t
;
using
difference_type
=
std
::
ptrdiff_t
;
using
size_type
=
size_t
;
using
difference_type
=
ptrdiff_t
;
using
propagate_on_container_copy_assignment
=
std
::
true_type
;
using
propagate_on_container_move_assignment
=
std
::
true_type
;
...
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