/* GLIB - Library of useful routines for C programming
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ *
* 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
#include <glibconfig.h>
#include <glib/gmacros.h>
#include <glib/gversionmacros.h>
+
+/* Must be included after the 3 headers above */
+#include <glib/glib-visibility.h>
+
#include <time.h>
G_BEGIN_DECLS
gpointer user_data);
typedef gboolean (*GEqualFunc) (gconstpointer a,
gconstpointer b);
+
+/**
+ * GEqualFuncFull:
+ * @a: a value
+ * @b: a value to compare with
+ * @user_data: user data provided by the caller
+ *
+ * Specifies the type of a function used to test two values for
+ * equality. The function should return %TRUE if both values are equal
+ * and %FALSE otherwise.
+ *
+ * This is a version of #GEqualFunc which provides a @user_data closure from
+ * the caller.
+ *
+ * Returns: %TRUE if @a = @b; %FALSE otherwise
+ * Since: 2.74
+ */
+typedef gboolean (*GEqualFuncFull) (gconstpointer a,
+ gconstpointer b,
+ gpointer user_data);
+
typedef void (*GDestroyNotify) (gpointer data);
typedef void (*GFunc) (gpointer data,
gpointer user_data);
*
* Declares a type of function which takes an arbitrary
* data pointer argument and has no return value. It is
- * not currently used in GLib or GTK+.
+ * not currently used in GLib or GTK.
*/
typedef void (*GFreeFunc) (gpointer data);
/* https://bugzilla.gnome.org/show_bug.cgi?id=769104 */
#if __GNUC__ >= 5 && !defined(__INTEL_COMPILER)
#define _GLIB_HAVE_BUILTIN_OVERFLOW_CHECKS
-#elif g_macro__has_builtin(__builtin_uadd_overflow)
+#elif g_macro__has_builtin(__builtin_add_overflow)
#define _GLIB_HAVE_BUILTIN_OVERFLOW_CHECKS
#endif
#endif
+#ifdef _GLIB_HAVE_BUILTIN_OVERFLOW_CHECKS
+
#define g_uint_checked_add(dest, a, b) \
- _GLIB_CHECKED_ADD_U32(dest, a, b)
+ (!__builtin_add_overflow(a, b, dest))
#define g_uint_checked_mul(dest, a, b) \
- _GLIB_CHECKED_MUL_U32(dest, a, b)
+ (!__builtin_mul_overflow(a, b, dest))
#define g_uint64_checked_add(dest, a, b) \
- _GLIB_CHECKED_ADD_U64(dest, a, b)
+ (!__builtin_add_overflow(a, b, dest))
#define g_uint64_checked_mul(dest, a, b) \
- _GLIB_CHECKED_MUL_U64(dest, a, b)
+ (!__builtin_mul_overflow(a, b, dest))
-#if GLIB_SIZEOF_SIZE_T == 8
-#define g_size_checked_add(dest, a, b) \
- _GLIB_CHECKED_ADD_U64(dest, a, b)
-#define g_size_checked_mul(dest, a, b) \
- _GLIB_CHECKED_MUL_U64(dest, a, b)
-#else
#define g_size_checked_add(dest, a, b) \
- _GLIB_CHECKED_ADD_U32(dest, a, b)
+ (!__builtin_add_overflow(a, b, dest))
#define g_size_checked_mul(dest, a, b) \
- _GLIB_CHECKED_MUL_U32(dest, a, b)
-#endif
+ (!__builtin_mul_overflow(a, b, dest))
+
+#else /* !_GLIB_HAVE_BUILTIN_OVERFLOW_CHECKS */
/* The names of the following inlines are private. Use the macro
* definitions above.
*/
-#ifdef _GLIB_HAVE_BUILTIN_OVERFLOW_CHECKS
-static inline gboolean _GLIB_CHECKED_ADD_U32 (guint32 *dest, guint32 a, guint32 b) {
- return !__builtin_uadd_overflow(a, b, dest); }
-static inline gboolean _GLIB_CHECKED_MUL_U32 (guint32 *dest, guint32 a, guint32 b) {
- return !__builtin_umul_overflow(a, b, dest); }
-static inline gboolean _GLIB_CHECKED_ADD_U64 (guint64 *dest, guint64 a, guint64 b) {
- G_STATIC_ASSERT(sizeof (unsigned long long) == sizeof (guint64));
- return !__builtin_uaddll_overflow(a, b, (unsigned long long *) dest); }
-static inline gboolean _GLIB_CHECKED_MUL_U64 (guint64 *dest, guint64 a, guint64 b) {
- return !__builtin_umulll_overflow(a, b, (unsigned long long *) dest); }
-#else
-static inline gboolean _GLIB_CHECKED_ADD_U32 (guint32 *dest, guint32 a, guint32 b) {
+static inline gboolean _GLIB_CHECKED_ADD_UINT (guint *dest, guint a, guint b) {
*dest = a + b; return *dest >= a; }
-static inline gboolean _GLIB_CHECKED_MUL_U32 (guint32 *dest, guint32 a, guint32 b) {
+static inline gboolean _GLIB_CHECKED_MUL_UINT (guint *dest, guint a, guint b) {
*dest = a * b; return !a || *dest / a == b; }
-static inline gboolean _GLIB_CHECKED_ADD_U64 (guint64 *dest, guint64 a, guint64 b) {
+static inline gboolean _GLIB_CHECKED_ADD_UINT64 (guint64 *dest, guint64 a, guint64 b) {
*dest = a + b; return *dest >= a; }
-static inline gboolean _GLIB_CHECKED_MUL_U64 (guint64 *dest, guint64 a, guint64 b) {
+static inline gboolean _GLIB_CHECKED_MUL_UINT64 (guint64 *dest, guint64 a, guint64 b) {
+ *dest = a * b; return !a || *dest / a == b; }
+static inline gboolean _GLIB_CHECKED_ADD_SIZE (gsize *dest, gsize a, gsize b) {
+ *dest = a + b; return *dest >= a; }
+static inline gboolean _GLIB_CHECKED_MUL_SIZE (gsize *dest, gsize a, gsize b) {
*dest = a * b; return !a || *dest / a == b; }
-#endif
+
+#define g_uint_checked_add(dest, a, b) \
+ _GLIB_CHECKED_ADD_UINT(dest, a, b)
+#define g_uint_checked_mul(dest, a, b) \
+ _GLIB_CHECKED_MUL_UINT(dest, a, b)
+
+#define g_uint64_checked_add(dest, a, b) \
+ _GLIB_CHECKED_ADD_UINT64(dest, a, b)
+#define g_uint64_checked_mul(dest, a, b) \
+ _GLIB_CHECKED_MUL_UINT64(dest, a, b)
+
+#define g_size_checked_add(dest, a, b) \
+ _GLIB_CHECKED_ADD_SIZE(dest, a, b)
+#define g_size_checked_mul(dest, a, b) \
+ _GLIB_CHECKED_MUL_SIZE(dest, a, b)
+
+#endif /* !_GLIB_HAVE_BUILTIN_OVERFLOW_CHECKS */
/* IEEE Standard 754 Single Precision Storage Format (gfloat):
*
glong tv_usec;
} GLIB_DEPRECATED_TYPE_IN_2_62_FOR(GDateTime);
-typedef gint grefcount;
-typedef volatile gint gatomicrefcount;
+typedef gint grefcount;
+typedef gint gatomicrefcount; /* should be accessed only using atomics */
G_END_DECLS
-/* We prefix variable declarations so they can
- * properly get exported in Windows DLLs.
- */
-#ifndef GLIB_VAR
-# ifdef G_PLATFORM_WIN32
-# ifdef GLIB_STATIC_COMPILATION
-# define GLIB_VAR extern
-# else /* !GLIB_STATIC_COMPILATION */
-# ifdef GLIB_COMPILATION
-# ifdef DLL_EXPORT
-# define GLIB_VAR extern __declspec(dllexport)
-# else /* !DLL_EXPORT */
-# define GLIB_VAR extern
-# endif /* !DLL_EXPORT */
-# else /* !GLIB_COMPILATION */
-# define GLIB_VAR extern __declspec(dllimport)
-# endif /* !GLIB_COMPILATION */
-# endif /* !GLIB_STATIC_COMPILATION */
-# else /* !G_PLATFORM_WIN32 */
-# define GLIB_VAR _GLIB_EXTERN
-# endif /* !G_PLATFORM_WIN32 */
-#endif /* GLIB_VAR */
-
#endif /* __G_TYPES_H__ */
projects / platform / upstream / glib.git / blobdiff