This file is indexed.

/usr/include/trilinos/Teuchos_toString.hpp is in libtrilinos-teuchos-dev 12.10.1-3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
// @HEADER
// ***********************************************************************
//
//                    Teuchos: Common Tools Package
//                 Copyright (2004) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ***********************************************************************
// @HEADER

#ifndef TEUCHOS_TO_STRING_HPP
#define TEUCHOS_TO_STRING_HPP

#include "Teuchos_ConfigDefs.hpp"
#ifdef HAVE_TEUCHOSCORE_QUADMATH
#  include <quadmath.h> // __float128 functions
#endif // HAVE_TEUCHOSCORE_QUADMATH

namespace Teuchos {

/** \brief Default traits class for converting objects into strings.
 *
 * NOTE: This default implementation relies on operator<<(std::ostream&, ...)
 * being defined for the data type T.
 *
 * \ingroup teuchos_language_support_grp
 */
template<typename T>
class ToStringTraits {
public:
  static std::string toString( const T &t )
    {
      std::ostringstream oss;
      oss << t;
      return oss.str();
    }
};


/** \brief Utility function for returning a pretty string representation of
 * a object of type T.
 *
 * NOTE: This helper function simply returns ToStringTraits<T>::toString(t)
 * and the right way to speicalize the behavior is to specialize
 * ToStringTraits.
 *
 * \ingroup teuchos_language_support_grp
 */
template<typename T>
inline
std::string toString(const T& t)
{
  return ToStringTraits<T>::toString(t);
}


/** \brief Specialization for bool. */
template<>
class ToStringTraits<bool> {
public:
  static std::string toString( const bool &t )
    {
      if (t)
        return "true";
      return "false";
    }
};


/** \brief Specialization for std::string. */
template<>
class ToStringTraits<std::string> {
public:
  static std::string toString( const std::string &t )
    {
      return t;
    }
};

/** \brief Specialization for double. */
template<>
class ToStringTraits<double> {
public:
  static std::string toString (const double& t) {
    std::ostringstream os;
    os.setf (std::ios::scientific);
    // 17 = round(52 * log10(2)) + 1.  That's one decimal digit more
    // than the binary precision justifies, which should be plenty.
    // Guy Steele et al. have a better algorithm for floating-point
    // I/O, but using a lot of digits is the lazy approach.
    os.precision (17);
    os << t;
    return os.str();
  }
};

/** \brief Specialization for float. */
template<>
class ToStringTraits<float> {
public:
  static std::string toString (const float& t) {
    std::ostringstream os;
    os.setf (std::ios::scientific);
    // 8 = round(23 * log10(2)) + 1.  That's one decimal digit more
    // than the binary precision justifies, which should be plenty.
    // Guy Steele et al. have a better algorithm for floating-point
    // I/O, but using a lot of digits is the lazy approach.
    os.precision (8);
    os << t;
    return os.str();
  }
};


#ifdef HAVE_TEUCHOSCORE_QUADMATH
/// \brief Partial specialization for \c __float128.
///
/// \c __float128 is a GCC language extension.  It requires linking
/// with libquadmath.
template<>
class ToStringTraits<__float128> {
public:
  static std::string toString (const __float128& val)
  {
    // libquadmath doesn't implement operator<< (std::ostream&,
    // __float128), but it does have a print function.
    const size_t bufSize = 128;
    char buf[128];

    // FIXME (mfh 04 Sep 2015) We should test the returned int value
    // to make sure that it is < bufSize.  On the other hand, I do not
    // want to add more header dependencies to this file, and
    // TEUCHOS_TEST_FOR_EXCEPTION is not already included.
#if 0
    const int numCharPrinted = quadmath_snprintf (buf, bufSize, "%.30Qe", val);
    TEUCHOS_TEST_FOR_EXCEPTION
      (static_cast<size_t> (numCharPrinted) >= bufSize, std::runtime_error,
       "Teuchos::toString: Failed to print __float128 value: buffer has "
       << bufSize << " characters, but quadmath_snprintf wanted "
       << numCharPrinted << " characters!");
#else
    (void) quadmath_snprintf (buf, bufSize, "%.30Qe", val);
#endif
    return std::string (buf);
  }
};
#endif // HAVE_TEUCHOSCORE_QUADMATH


/// \brief Partial specialization for std::pair<T1, T2>.
///
/// \note This relies on operator<< working for T1 and T2.
template<typename T1, typename T2>
class ToStringTraits<std::pair<T1, T2> > {
public:
  static std::string toString (const std::pair<T1, T2>& t) {
    std::ostringstream oss;
    oss << "(" << t.first << "," << t.second << ")";
    return oss.str();
  }
};

} // end namespace Teuchos


#endif // TEUCHOS_TO_STRING_HPP