Returns a CVaListPointer that is backed by autoreleased storage, built
from the given array of arguments.
You should prefer withVaList(_:_:) instead of this function. In some
uses, such as in a class initializer, you may find that the language
rules do not allow you to use withVaList(_:_:) as intended.
If you need to pass an optional pointer as a CVarArg argument, use the
Int(bitPattern:) initializer to interpret the optional pointer as an
Int value, which has the same C variadic calling conventions as a pointer
on all supported platforms.
args: An array of arguments to convert to a C va_list
pointer.
Returns: A pointer that can be used with C functions that take a
va_list argument.
Returns a
CVaListPointerthat is backed by autoreleased storage, built from the given array of arguments.You should prefer
withVaList(_:_:)instead of this function. In some uses, such as in aclassinitializer, you may find that the language rules do not allow you to usewithVaList(_:_:)as intended.If you need to pass an optional pointer as a
CVarArgargument, use theInt(bitPattern:)initializer to interpret the optional pointer as anIntvalue, which has the same C variadic calling conventions as a pointer on all supported platforms.args: An array of arguments to convert to a Cva_listpointer. Returns: A pointer that can be used with C functions that take ava_listargument.Declaration
funcgetVaList(_args: [CVarArg]) ->CVaListPointer