/usr/include/mia-2.2/mia/core/utils.hh is in libmia-2.2-dev 2.2.2-1+b1.
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 | /* -*- mia-c++ -*-
*
* This file is part of MIA - a toolbox for medical image analysis
* Copyright (c) Leipzig, Madrid 1999-2014 Gert Wollny
*
* MIA 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.
*
* This program 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 MIA; if not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __MIA_TOOLS_HH
#define __MIA_TOOLS_HH 1
#include <limits>
#include <string>
#include <sstream>
#include <iostream>
#include <vector>
#include <cmath>
#include <stdexcept>
#include <mia/core/defines.hh>
NS_MIA_BEGIN
/**
\ingroup misc
\brief A Scope based helper class to save and restore the current working directory
A helper class that stores the current working directory on construction
and goes back to the it when the class intance is destroyed.
*/
class EXPORT_CORE CCWDSaver {
char *cwd;
public:
CCWDSaver();
~CCWDSaver();
};
#if 0
/**
\ingroup misc
\brief a functor to search for files
*/
class FSearchFiles {
std::list<std::string>& result;
const std::string pattern;
public:
/** constructor of functor
\param __result takes an (empty) list to which the found files will be stored
\param __pattern holds the search pattern
*/
FSearchFiles(std::list<std::string>& __result, const std::string& __pattern);
/** search the given \a path with the stored search pattern and add the found files to result */
void operator()(const std::string& path);
};
#endif
#ifndef _GNU_SOURCE
/**
\ingroup misc
Provide sincosf conveniance functions for sin and cos if the GNU GCC extension is not available.
*/
void sincosf(float x, float *sin, float *cos);
/**
\ingroup misc
Provide sincosf conveniance functions for sin and cos if the GNU GCC extension is not available.
*/
void sincos(double x, double *sin, double *cos);
#endif
/**
@cond INTERNAL
\ingroup traits
\brief trait to handle rounding of a double to different output types
*/
template <typename T, bool is_float>
struct __round {
static T apply(double x) {
return x;
}
};
template <typename T>
struct __round<T, false> {
static T apply(double x) {
return static_cast<T>(rint(x));
}
};
/// @endcond
/**
\ingroup misc
A simple class to round floating point numbers onyl if necessary.
If the target is a floating point values then the result is just passed through,
otherwise rint is used for rounding
\param x
\returns rounded value or x
*/
template <typename T>
T mia_round(double x)
{
const bool is_floating_point = std::is_floating_point<T>::value;
return __round<T, is_floating_point>::apply(x);
}
/**
@cond INTERNAL
\ingroup traits
\brief trait to handle rounding of a double to different output types with clamping to the output range
*/
template <typename T, bool is_float>
struct __round_clamped {
static T apply(double x) {
return x;
}
};
template <>
struct __round_clamped<float, true> {
static float apply(double x) {
double y = x < std::numeric_limits<float>::max() ?
( x > -std::numeric_limits<float>::max() ? x : -std::numeric_limits<float>::max()) :
std::numeric_limits<float>::max();
return static_cast<float>(y);
}
};
template <>
struct __round_clamped<bool, false> {
static float apply(double x) {
return x > 0.5;
}
};
template <typename T>
struct __round_clamped<T, false> {
static T apply(double x) {
const double y = rint(x);
const double yy = y < std::numeric_limits<T>::max() ?
( y > std::numeric_limits<T>::min() ? y : std::numeric_limits<T>::min()) :
std::numeric_limits<T>::max();
return static_cast<T>(yy);
}
};
/// @endcond
/**
\ingroup misc
A simple class to round floating point numbers onyl if necessary.
If the target is a floating point values then the result is just passed through,
otherwise rint is used for rounding
\param x
\returns rounded value or x
*/
template <typename T>
T mia_round_clamped(double x)
{
const bool is_floating_point = std::is_floating_point<T>::value;
return __round_clamped<T, is_floating_point>::apply(x);
}
inline void eat_char( std::istream& is, char expect_val, const char *message)
{
char c;
is >> c;
if ( c != expect_val)
throw std::runtime_error(message);
}
NS_MIA_END
#endif
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