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ENH: refine PtrList emplace method, add emplace for autoPtr/refPtr...

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* resize_null() methods for PtrList variants
  - for cases where an existing PtrList needs a specific size and
    but not retain any existing entries.

    Eg,
        ptrs.resize_null(100);

    vs.   ptrs.free();     ptr.resize(100);
    or    ptr.resize(100); ptrs.free();

* remove stored pointer before emplacing PtrList elements
  - may reduce memory peaks

* STYLE: static_cast of (nullptr) instead of reinterpret_cast of (0)

* COMP: implement emplace_set() for PtrDynList
  - previously missing, which meant it would have leaked through to the
    underlying PtrList definition

* emplace methods for autoPtr, refPtr, tmp
  - applies reset() with forwarding arguments.
    For example,

        tmp<GeoField> tfld = ...;

    later...

        tfld.emplace(io, mesh);

    vs.
        tfld.reset(new GeoField(io, mesh));
    or
        tfld.reset(tmp<GeoField>::New(io, mesh));

    The emplace() obviously has reduced typing, but also allows the
    existing stored pointer to be deleted *before* creating its
    replacement (reduces memory peaks).
This commit is contained in:
Mark Olesen
2023-07-21 10:22:15 +02:00
parent 5e334c0686
commit 63258d0b33
23 changed files with 272 additions and 69 deletions
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7
applications/test/tmp/Test-tmp.C
View File

@ -5,7 +5,7 @@
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2018-2021 OpenCFD Ltd.
Copyright (C) 2018-2023 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
@ -78,7 +78,10 @@ int main()
}
{
auto tfld1 = tmp<scalarField>::New(20, Zero);
auto tfld1 = tmp<scalarField>::New(10, Zero);
printInfo(tfld1, true);
tfld1.emplace(20, Zero);
printInfo(tfld1, true);
// Hold on to the old content for a bit