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Title: Value Collection SPDX-License-Identifier: LGPL-2.1-or-later SPDX-FileCopyrightText: 2005 Matthias Clasen
Value Collection
GLib provides a set of macros for the varargs parsing support needed in variadic GObject functions such as [ctor@GObject.Object.new] or [method@GObject.Object.set]
They currently support the collection of integral types, floating point types and pointers.
Macros
G_VALUE_COLLECT_INIT(value, _value_type, var_args, flags, __error)-
Collects a variable argument value from a
va_list.We have to implement the varargs collection as a macro, because on some systems
va_listvariables cannot be passed by reference.Since: 2.24
G_VALUE_COLLECT_INIT2(value, g_vci_vtab, _value_type, var_args, flags, __error)-
A variant of
G_VALUE_COLLECT_INITthat provides the [struct@GObject.TypeValueTable] to the caller.Since: 2.74
G_VALUE_COLLECT(value, var_args, flags, __error)-
Collects a variable argument value from a
va_list.We have to implement the varargs collection as a macro, because on some systems
va_listvariables cannot be passed by reference.Note: If you are creating the
value argumentjust before calling this macro, you should use theG_VALUE_COLLECT_INITvariant and pass the uninitializedGValue. That variant is faster thanG_VALUE_COLLECT. G_VALUE_COLLECT_SKIP(_value_type, var_args)-
Skip an argument of type
_value_typefromvar_args. G_VALUE_LCOPY(value, var_args, flags, __error)-
Stores a value’s value into one or more argument locations from a
va_list.This is the inverse of G_VALUE_COLLECT().
G_VALUE_COLLECT_FORMAT_MAX_LENGTH-
The maximal number of [type@GObject.TypeCValue]s which can be collected for a single
GValue.