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- // -*- c++ -*-
- #ifndef _GLIBMM_UTILITY_H
- #define _GLIBMM_UTILITY_H
- /* $Id: utility.h,v 1.2 2003/01/21 12:43:26 murrayc Exp $ */
-
- /* 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 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 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- #include <glib/gmacros.h>
- #include <glibmm/ustring.h>
-
-
- #ifndef DOXYGEN_SHOULD_SKIP_THIS
-
- extern "C" void g_free(void*);
-
-
- /* 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.
- */
- #if ((__GNUC__ >= 3) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)) && !defined(__STRICT_ANSI__)
-
- #define GLIBMM_INITIALIZE_STRUCT(Var, Type) __builtin_memset(&(Var), 0, sizeof(Type))
-
- #else
-
- #define GLIBMM_INITIALIZE_STRUCT(Var, Type) \
- G_STMT_START{ \
- Type const temp_initializer__ = { 0, }; \
- (Var) = temp_initializer__; \
- }G_STMT_END
-
- #endif /* ((__GNUC__ >= 3) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)) && !defined(__STRICT_ANSI__) */
-
-
- namespace Glib
- {
-
- // These are used by gtkmmproc-generated type conversions:
-
- // Helper to deal with memory allocated
- // by GLib functions in an exception-safe manner.
- template <typename T>
- class ScopedPtr
- {
- private:
- T* ptr_;
- ScopedPtr(const ScopedPtr<T>&);
- ScopedPtr<T>& operator=(const ScopedPtr<T>&);
-
- public:
- ScopedPtr() : ptr_ (0) {}
- explicit ScopedPtr(T* ptr) : ptr_ (ptr) {}
- ~ScopedPtr() { g_free(ptr_); }
- T* get() const { return ptr_; }
- T** addr() { return &ptr_; }
- };
-
- // 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::ScopedPtr<char>(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::ScopedPtr<char>(str).get())
- : std::string();
- }
-
- // Append type_name to dest, while replacing special characters with '+'.
- void append_canonical_typename(std::string& dest, const char* type_name);
-
- } // namespace Glib
-
- #endif /* DOXYGEN_SHOULD_SKIP_THIS */
-
-
- #endif /* _GLIBMM_UTILITY_H */
-
-