Snapshot gcc-9-20200925 is now available on
https://gcc.gnu.org/pub/gcc/snapshots/9-20200925/
and on various mirrors, see http://gcc.gnu.org/mirrors.html for details.
This snapshot has been generated from the GCC 9 git branch
with the following options: git://gcc.gnu.org/git/gcc.git branch
'nitems()' calculates the length of an array in number of items.
It is safe: if a pointer is passed to the macro (or function, in C++),
the compilation is broken due to:
- In >= C11: _Static_assert()
- In C89, C99: Negative anonymous bitfield
- In C++: The template requires an array
Some BSDs a
On 2020-09-25 19:39, Jonathan Wakely wrote:
> Yes, I'm aware of all the rationale. I already said that it makes
> sense in C++ where you have generic code. I am not convinced that it's
> necessary to add to when all it does is a cast from
> size_t to ptrdiff_t.
>
While I would prefer a signed
On 25/09/20 18:30 +0200, Alejandro Colomar via Libstdc++ wrote:
I have a similar number of ARRAY_SIZE() and ARRAY_SSIZE().
I could have '#define snitems(arr) ((ptrdiff_t)nitems(arr))' in my projects,
but is it really necessary?
The barrier for adding something to glibc headers should be a LOT
h
On 25/09/20 18:30 +0200, Alejandro Colomar via Libstdc++ wrote:
Hello Jonathan,
On 2020-09-25 16:48, Jonathan Wakely wrote:
Do you really need to provide snitems?
Users can use (ptrdiff_t)nitems if needed, can't they?
They can, but that adds casts in the code,
which makes longer lines that a
Hello Jonathan,
On 2020-09-25 16:48, Jonathan Wakely wrote:
> Do you really need to provide snitems?
>
> Users can use (ptrdiff_t)nitems if needed, can't they?
They can, but that adds casts in the code,
which makes longer lines that are somewhat harder to read.
To avoid that, users may sometimes
On 25/09/20 16:10 +0200, Alejandro Colomar wrote:
On 2020-09-25 15:20, Alejandro Colomar wrote:
'nitems()' calculates the length of an array in number of items.
It is safe: if a pointer is passed to the macro (or function, in C++),
the compilation is broken due to:
- In >= C11: _Static_asser
On 2020-09-25 15:20, Alejandro Colomar wrote:
> 'nitems()' calculates the length of an array in number of items.
> It is safe: if a pointer is passed to the macro (or function, in C++),
> the compilation is broken due to:
> - In >= C11: _Static_assert()
> - In C89, C99: Negative anonymous b
'nitems()' calculates the length of an array in number of items.
It is safe: if a pointer is passed to the macro (or function, in C++),
the compilation is broken due to:
- In >= C11: _Static_assert()
- In C89, C99: Negative anonymous bitfield
- In C++: The template requires an array
'snitems()'
On Fri, Sep 25, 2020 at 2:27 PM Erick Ochoa
wrote:
>
>
>
> On 25/09/2020 13:30, Richard Biener wrote:
> > On Fri, Sep 25, 2020 at 9:05 AM Erick Ochoa
> > wrote:
> >>
> >> Hi,
> >>
> >> I am working on an alias analysis using the points-to information
> >> generated during IPA-PTA. If we look at t
On 25/09/2020 13:30, Richard Biener wrote:
On Fri, Sep 25, 2020 at 9:05 AM Erick Ochoa
wrote:
Hi,
I am working on an alias analysis using the points-to information
generated during IPA-PTA. If we look at the varmap varinfo_t array in
gcc/tree-ssa-struct.c, most of the constraint variable i
On Fri, Sep 25, 2020 at 9:05 AM Erick Ochoa
wrote:
>
> Hi,
>
> I am working on an alias analysis using the points-to information
> generated during IPA-PTA. If we look at the varmap varinfo_t array in
> gcc/tree-ssa-struct.c, most of the constraint variable info structs
> contain a non-null decl f
On 9/25/20 8:02 AM, Thomas Koenig via Fortran wrote:
for review of its patches, gfortran relies on a group of people
who can approve patches. Unfortuntately, many of them are not
active. Others, who have the capability and who have acted as
de facto approvers (without anybody minding) are missi
Hi,
I am working on an alias analysis using the points-to information
generated during IPA-PTA. If we look at the varmap varinfo_t array in
gcc/tree-ssa-struct.c, most of the constraint variable info structs
contain a non-null decl field which points to a valid tree in gimple
(which is an SSA
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