/usr/include/glibmm-2.4/glibmm/utility.h is in libglibmm-2.4-dev 2.56.0-1.
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 | #ifndef _GLIBMM_UTILITY_H
#define _GLIBMM_UTILITY_H
/* Copyright 2002 The gtkmm Development Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <glibmmconfig.h>
#include <glibmm/ustring.h>
#include <glib.h>
#include <memory> //For std::unique_ptr.
#ifndef DOXYGEN_SHOULD_SKIP_THIS
#ifndef GLIBMM_DISABLE_DEPRECATED
/* Occasionally, a struct variable has to be initialized after its definition,
* i.e. when using structs as class member data. For convenience, the macro
* GLIBMM_INITIALIZE_STRUCT(Var, Type) is provided. It even avoids creating
* a temporary if the compiler is GCC.
*
* @deprecated Use e.g. std::memset() instead.
* It's not used any more in the code generated by _CLASS_BOXEDTYPE_STATIC.
* It generates compiler warnings if __STRICT_ANSI__ is defined.
*/
#if ((__GNUC__ >= 3) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)) && !defined(__STRICT_ANSI__)
#define GLIBMM_INITIALIZE_STRUCT(Var, Type) __builtin_memset(&(Var), 0, sizeof(Type))
#else
// TODO: This causes warnings like this:
//"missing initializer for member"
#define GLIBMM_INITIALIZE_STRUCT(Var, Type) \
G_STMT_START \
{ \
Type const temp_initializer__ = { \
0, \
}; \
(Var) = temp_initializer__; \
} \
G_STMT_END
#endif
#endif // GLIBMM_DISABLE_DEPRECATED
namespace Glib
{
// These are used by gmmproc-generated type conversions:
#ifndef GLIBMM_DISABLE_DEPRECATED
/** Helper to deal with memory allocated
* by GLib functions in an exception-safe manner.
*
* @deprecated Use make_unique_ptr_gfree() instead.
*/
template <typename T>
class ScopedPtr
{
private:
T* ptr_;
ScopedPtr(const ScopedPtr<T>&);
ScopedPtr<T>& operator=(const ScopedPtr<T>&);
public:
ScopedPtr() : ptr_(nullptr) {}
explicit ScopedPtr(T* ptr) : ptr_(ptr) {}
~ScopedPtr() noexcept { g_free(ptr_); }
T* get() const { return ptr_; }
T** addr() { return &ptr_; }
};
#endif // GLIBMM_DISABLE_DEPRECATED
/** Helper to deal with memory allocated
* by GLib functions in an exception-safe manner.
*
* This just creates a std::unique_ptr that uses g_free() as its deleter.
*/
template <typename T>
std::unique_ptr<T[], decltype(&g_free)>
make_unique_ptr_gfree(T* p)
{
return std::unique_ptr<T[], decltype(&g_free)>(p, &g_free);
}
// TODO: Deprecate this? We don't use it ourselves.
/** Removes the const nature of a ptr
*
*/
template <class T>
inline T*
unconst(const T* t)
{
return const_cast<T*>(t);
}
// Convert const gchar* to ustring, while treating NULL as empty string.
inline Glib::ustring
convert_const_gchar_ptr_to_ustring(const char* str)
{
return (str) ? Glib::ustring(str) : Glib::ustring();
}
// Convert const gchar* to std::string, while treating NULL as empty string.
inline std::string
convert_const_gchar_ptr_to_stdstring(const char* str)
{
return (str) ? std::string(str) : std::string();
}
// Convert a non-const gchar* return value to ustring, freeing it too.
inline Glib::ustring
convert_return_gchar_ptr_to_ustring(char* str)
{
return (str) ? Glib::ustring(Glib::make_unique_ptr_gfree(str).get()) : Glib::ustring();
}
// Convert a non-const gchar* return value to std::string, freeing it too.
inline std::string
convert_return_gchar_ptr_to_stdstring(char* str)
{
return (str) ? std::string(Glib::make_unique_ptr_gfree(str).get()) : std::string();
}
/** Get a pointer to the C style string in a std::string or Glib::ustring.
* If the string is empty, a nullptr is returned.
*/
template <typename T>
inline const char*
c_str_or_nullptr(const T& str)
{
return str.empty() ? nullptr : str.c_str();
}
// Append type_name to dest, while replacing special characters with '+'.
void append_canonical_typename(std::string& dest, const char* type_name);
// Delete data referred to by a void*.
// Instantiations can be used as destroy callbacks in glib functions
// that take a GDestroyNotify parameter, such as g_object_set_qdata_full()
// and g_option_group_set_translate_func().
template <typename T>
void
destroy_notify_delete(void* data)
{
delete static_cast<T*>(data);
}
} // namespace Glib
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
#endif /* _GLIBMM_UTILITY_H */
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