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src
OpenFOAM
primitives
ints
longLong
longLongIO.C
Go to the documentation of this file.
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/*---------------------------------------------------------------------------*\
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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 | Copyright (C) 1991-2010 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Description
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Reads a long long from an input stream, for a given version
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number and File format. If an ascii File is being read, then the line
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numbers are counted and an erroneous read ised.
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\*---------------------------------------------------------------------------*/
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#include <
OpenFOAM/error.H
>
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#include "
longLong.H
"
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#include <
OpenFOAM/IOstreams.H
>
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#include <sstream>
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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Foam::word
Foam::name
(
long
long
val)
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{
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std::ostringstream buf;
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buf << val;
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return
buf.str();
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}
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// * * * * * * * * * * * * * * * IOstream Operators * * * * * * * * * * * * //
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Foam::Istream
&
Foam::operator>>
(
Istream
& is,
long
long
& l)
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{
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l =
readLongLong
(is);
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// Check state of Istream
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is.
check
(
"Istream& operator>>(Istream&, long long&)"
);
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return
is;
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}
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long
long
Foam::readLongLong
(
Istream
& is)
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{
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register
long
long
result = 0;
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char
c = 0;
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static
const
label zeroOffset = int(
'0'
);
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// Get next non-whitespace character
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while
(is.
read
(c) &&
isspace
(c))
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{}
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do
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{
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if
(
isspace
(c) || c == 0)
break
;
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if
(!isdigit(c))
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{
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FatalIOErrorIn
(
"readLongLong(ISstream& is)"
, is)
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<<
"Illegal digit: \""
<< c <<
"\""
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<<
exit
(
FatalIOError
);
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}
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result *= 10 + int(c) - zeroOffset;
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}
while
(is.
read
(c));
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return
result;
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}
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Foam::Ostream
&
Foam::operator<<
(Ostream& os,
const
long
long
l)
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{
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long
long
val = l;
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long
long
mask = 1000000000000000000LL;
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bool
printZeroes =
false
;
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while
(mask > 0)
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{
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int
d
= int(val/mask);
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if
(d == 0)
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{
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if
(printZeroes)
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{
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os.write(
'0'
);
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}
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}
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else
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{
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printZeroes =
true
;
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os.write(
char
(d+
'0'
));
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}
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val = val % mask;
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mask /= 10;
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}
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os.check(
"Ostream& operator<<(Ostream&, const long long)"
);
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return
os;
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}
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// ************************ vim: set sw=4 sts=4 et: ************************ //