Merge pull request #1927 from CEED/jeremy/scalar-multiplicity

Scalar Multigrid Multiplicity

gallery - add scalar scaling qf

gallery - add identity to scalar qf

Merge pull request #1912 from CEED/jeremy/copyright

minor - update copyright to 2026

minor - update copyright to 2026

Merge pull request #1786 from CEED/jeremy/copy-headers

minor - upate copyright to 2025

minor - upate copyright to 2025

Merge pull request #1537 from CEED/jeremy/pragma-once

Use #pragma once for non-JiT headers

minor - update copyright headers

Docstring consistency (#1409)

* doc - docstring consistency

* doc - update for bad linking of type names

* doc - update for bad linking of type names

IWYU fixes (#1182)

* iwyu - include fixes

* iwyu - silence some iwyu output

* minor - clearer macro names

* iwyu - fix suggestion of "ceed/ceed.h" externally

* iwyu - lighter petsc heade

IWYU fixes (#1182)

* iwyu - include fixes

* iwyu - silence some iwyu output

* minor - clearer macro names

* iwyu - fix suggestion of "ceed/ceed.h" externally

* iwyu - lighter petsc headers

* iwyu - ceed/ceed.h -> ceed.h

* iwyu - cuda/hip include fixes

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Merge pull request #1104 from CEED/jeremy/formatting

Minor Formatting Fixes

minor - assorted formatting fixes

Merge pull request #858 from CEED/jeremy/dump-copy-stuff

Strip redundant/outdated license info duplication

minor - update copyright headers

Merge pull request #857 from CEED/jeremy/vec-gallery

Expand Gallery QFunctions

gallery - add 3 to name of vector BPs

gallery - add vector mass/poisson for BP2/4/6

Merge pull request #840 from CEED/jeremy/env-debug

Macro for Debug without Ceed Context

minor - remove template backend/qfunction from registration

Merge pull request #674 from CEED/jed/static-link

static link

Add static library (libceed.a) [resolve #670]

We no longer use __attribute__((constructor)) to register backends and
gallery implementations because we can't ensure that the symbols are
linked into

Add static library (libceed.a) [resolve #670]

We no longer use __attribute__((constructor)) to register backends and
gallery implementations because we can't ensure that the symbols are
linked into applications that link the static library. We've switched to
creating CeedRegisterAll() and CeedQFunctionRegisterAll(), which are
called automatically by the library, and call weak symbols to register
all the backend/gallery implementations. This strategy was partly
motivated by not wanting to have preprocessor macros describing what is
available, and the associated need to recompile rather than just relink
when those macros change.

So we now have backends/ceed-backend-list.h that declares all the
backends wrapped in a macro. It is included by
backends/ceed-backend-weak.c to create weak definitions of all the
backends. In the makefile, we sort so this comes last when linking a
shared or static library, and thus these weak symbols will only be
picked up if they were not defined by the actual backend source files.
The same header is included (with different macro wrapping) in
interface/ceed-register.c, where CeedRegisterAll() is defined.

To add a new backend, one must do essentially the same registration
strategy as in the past, plus add one line to the common
ceed-backend-list.h.

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