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6e2b7be983
- previously hidden as Detail::[IO]FstreamAllocator, now exposed
directly as [io]fstreamPointer, which allows reuse for
std::ifstream, std::ofstream wrapping, without the additional
ISstream, OSstream layers.
These stream pointers have some characteristics similar to a
unique_ptr.
- restrict direct gzstream usage to two files (fstreamPointers.C,
gzstream.C) which improves localization and makes it simpler to
enable/disable with the `HAVE_LIBZ` define.
The HAVE_LIBZ define is currently simply hard-coded in the
Make/options.
If compiled WITHOUT libz support:
- reading gz files : FatalError
- writing gz files : emit warning and downgrade to uncompressed
- warn if compression is specified in the case controlDict
and downgrade to uncompressed
ENH: minor updates to gzstream interface for C++11
- support construct/open with std::string for the file names.
CONFIG: provisioning for have_libz detection as wmake/script
115 lines
2.7 KiB
C
115 lines
2.7 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | www.openfoam.com
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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Copyright (C) 2020 OpenCFD Ltd.
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
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Application
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Test-fstreamPointer
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Description
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Low-level fstream tests
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\*---------------------------------------------------------------------------*/
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#include "argList.H"
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#include "refPtr.H"
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#include "fstreamPointer.H"
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using namespace Foam;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// Main program:
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int main(int argc, char *argv[])
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{
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argList::noBanner();
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argList::noParallel();
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argList::addOption
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(
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"output",
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"file",
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"Output file name for cat"
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);
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argList::addArgument("file1");
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argList::addArgument("...");
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argList::addArgument("fileN");
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argList::noMandatoryArgs();
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#include "setRootCase.H"
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if (args.size() <= 1)
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{
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InfoErr<< "\nNo input files specified .. stopping\n" << endl;
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return 0;
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}
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refPtr<std::ostream> osRef;
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fileName outputName;
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if (args.readIfPresent("output", outputName))
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{
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InfoErr<< "output: " << outputName;
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IOstreamOption::compressionType comp(IOstreamOption::UNCOMPRESSED);
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if (outputName.hasExt("gz"))
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{
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comp = IOstreamOption::COMPRESSED;
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outputName.removeExt();
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InfoErr<< " [compress]";
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}
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InfoErr<< nl;
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osRef.reset(ofstreamPointer(outputName, comp).release());
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}
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else
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{
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osRef.ref(std::cout);
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InfoErr<< "output: stdout" << nl;
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}
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auto& os = osRef.ref();
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for (label argi = 1; argi < args.size(); ++argi)
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{
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const fileName inputName(args[argi]);
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InfoErr<< "input: " << inputName;
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ifstreamPointer isPtr(inputName);
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if (!isPtr.get() || !isPtr->good())
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{
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InfoErr<< " (not good)" << nl;
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continue;
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}
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InfoErr<< nl;
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auto& is = *isPtr;
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// Loop getting single characters
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// - not efficient, but that is not the test here anyhow
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char c;
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while (is.get(c))
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{
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os << c;
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}
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}
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InfoErr<< "\nEnd\n" << endl;
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return 0;
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}
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// ************************************************************************* //
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