/usr/include/casacore/casa/Containers/RecordFieldId.h is in casacore-dev 2.2.0-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | //# RecordFieldId.h: The identification of a record field
//# Copyright (C) 1995,1996
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: aips2-request@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
//#
//#
//# $Id$
#ifndef CASA_RECORDFIELDID_H
#define CASA_RECORDFIELDID_H
//# Includes
#include <casacore/casa/aips.h>
#include <casacore/casa/BasicSL/String.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
//# Forward Declarations
class RecordInterface;
// <summary>
// The identification of a record field.
// </summary>
// <use visibility=export>
// <reviewed reviewer="Mark Wieringa" date="1996/04/15" tests="tRecord">
// </reviewed>
// <prerequisite>
// <li> <linkto class="RecordInterface">RecordInterface</linkto>.
// </prerequisite>
// <etymology>
// RecordFieldId gives the identification of a field in a record.
// </etymology>
// <synopsis>
// This class provides the user to identify a field in a record.
// Identification can be done by means of the field name or by means
// of its field number.
// <br>For the programmer the most convenient way is probably the name,
// because that is the natural identification.
// However, identification by means of field number is much faster
// and could be used when it is known.
// </synopsis>
// <example>
// <srcblock>
// void someFunc (const Record& record)
// {
// float value1 = record.asfloat ("name"); // identify by name
// float value2 = record.asfloat (0); // identify by number
// }
// </srcBlock>
// </example>
// <motivation>
// This class makes it possible that many functions in Record classes
// have to be defined only once. The constructors of RecordFieldId
// make it possible that a number and a string are automatically
// converted, so the user does not have to instantiate a RecordFieldId
// object explicitly.
// </motivation>
//# <todo asof="1996/03/12">
//# </todo>
class RecordFieldId
{
public:
// Construct it from a field number.
RecordFieldId (Int fieldNumber);
// Construct it from a field name.
// <group>
RecordFieldId (const String& name);
RecordFieldId (const std::string& name);
RecordFieldId (const Char* name);
// </group>
// Get the field number.
Int fieldNumber() const;
// Get the field name.
const String& fieldName() const;
// Is the id given by name?
Bool byName() const;
private:
Bool byName_p;
Int number_p;
String name_p;
};
inline RecordFieldId::RecordFieldId (Int fieldNumber)
: byName_p (False),
number_p (fieldNumber)
{}
inline RecordFieldId::RecordFieldId (const String& fieldName)
: byName_p (True),
number_p (-1),
name_p (fieldName)
{}
inline RecordFieldId::RecordFieldId (const std::string& fieldName)
: byName_p (True),
number_p (-1),
name_p (fieldName)
{}
inline RecordFieldId::RecordFieldId (const Char* fieldName)
: byName_p (True),
number_p (-1),
name_p (fieldName)
{}
inline Int RecordFieldId::fieldNumber() const
{
return number_p;
}
inline const String& RecordFieldId::fieldName() const
{
return name_p;
}
inline Bool RecordFieldId::byName() const
{
return byName_p;
}
} //# NAMESPACE CASACORE - END
#endif
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