Paul Davis
449aab3c46
git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf
118 lines
3.5 KiB
C++
118 lines
3.5 KiB
C++
// -*- c++ -*-
|
|
#ifndef _GLIBMM_UTILITY_H
|
|
#define _GLIBMM_UTILITY_H
|
|
/* $Id: utility.h 386 2007-03-23 17:31:16Z murrayc $ */
|
|
|
|
/* 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 <glib/gmem.h>
|
|
#include <glibmm/ustring.h>
|
|
|
|
|
|
#ifndef DOXYGEN_SHOULD_SKIP_THIS
|
|
|
|
/* 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 */
|
|
|