/usr/include/octave-4.2.2/octave/oct-string.h is in liboctave-dev 4.2.2-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (C) 2016-2017 Carnë Draug
This file is part of Octave.
Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
Octave 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 General Public License
for more details.
You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING. If not, see
<http://www.gnu.org/licenses/>.
*/
#if ! defined (octave_oct_string_h)
#define octave_oct_string_h 1
#include "octave-config.h"
namespace octave
{
//! Octave string utility functions.
/*!
This functions provide a C++ interface to most string functions
available in the Octave interpreter.
Specializations for Array may consider its dimensions in addition
to the actual string contents.
@attention
Octave's string comparison functions return true when strings are
are equal, just the opposite of the corresponding C library functions.
In addition, Octave's function only return bool and do not check
lexicographical order.
*/
namespace string
{
//! True if strings are the same.
/*!
## Specialization for Array<char>
When comparing whole Array of chars, the actual Array dimensions
are significant. A column vector and row vector with the same
char array, will still return false.
*/
template <typename T>
bool strcmp (const T& str_a, const T& str_b);
//! True if string is the same as character sequence.
/*!
Compares a string to the null-terminated character sequence
beginning at the character pointed to by str_b.
## Specialization for Array<char>
For purposes of comparison of dimensions, the character sequence
is considered to be a row vector.
*/
template <typename T>
bool strcmp (const T& str_a, const typename T::value_type* str_b);
//! True if strings are the same, ignoring case.
/*!
## Specialization for Array<char>
When comparing whole Array of chars, the actual Array dimensions
are significant. A column vector and row vector with the same
char array, will still return false.
*/
template <typename T>
bool strcmpi (const T& str_a, const T& str_b);
//! True if string is the same as character sequence, ignoring case.
/*!
## Specialization for Array<char>
For purposes of comparison of dimensions, the character sequence
is considered to be a row vector.
*/
template <typename T>
bool strcmpi (const T& str_a, const typename T::value_type* str_b);
//! True if the first N characters are the same.
/*!
## Specialization for Array<char>
The comparison is done in the first N characters, the actual
dimensions of the Array are irrelevant. A row vector and
a column vector of the same still return true.
*/
template <typename T>
bool strncmp (const T& str_a, const T& str_b,
const typename T::size_type n);
//! True if the first N characters are the same.
template <typename T>
bool strncmp (const T& str_a, const typename T::value_type* str_b,
const typename T::size_type n);
//! True if the first N characters are the same, ignoring case.
/*!
## Specialization for Array<char>
The comparison is done in the first N characters, the actual
dimensions of the Array are irrelevant. A row vector and
a column vector of the same still return true.
*/
template <typename T>
bool strncmpi (const T& str_a, const T& str_b,
const typename T::size_type n);
//! True if the first N characters are the same, ignoring case.
template <typename T>
bool strncmpi (const T& str_a, const typename T::value_type* str_b,
const typename T::size_type n);
}
}
#endif
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