1// -*- C++ -*-
2//===----------------------------------------------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef _LIBCPP___IOS_FPOS_H
11#define _LIBCPP___IOS_FPOS_H
12
13#include <__config>
14#include <__fwd/ios.h>
15
16#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17# pragma GCC system_header
18#endif
19
20_LIBCPP_BEGIN_NAMESPACE_STD
21
22template <class _StateT>
23class fpos {
24private:
25 _StateT __st_;
26 streamoff __off_;
27
28public:
29 _LIBCPP_HIDE_FROM_ABI fpos(streamoff __off = streamoff()) : __st_(), __off_(__off) {}
30
31 _LIBCPP_HIDE_FROM_ABI operator streamoff() const { return __off_; }
32
33 _LIBCPP_HIDE_FROM_ABI _StateT state() const { return __st_; }
34 _LIBCPP_HIDE_FROM_ABI void state(_StateT __st) { __st_ = __st; }
35
36 _LIBCPP_HIDE_FROM_ABI fpos& operator+=(streamoff __off) {
37 __off_ += __off;
38 return *this;
39 }
40
41 _LIBCPP_HIDE_FROM_ABI fpos operator+(streamoff __off) const {
42 fpos __t(*this);
43 __t += __off;
44 return __t;
45 }
46
47 _LIBCPP_HIDE_FROM_ABI fpos& operator-=(streamoff __off) {
48 __off_ -= __off;
49 return *this;
50 }
51
52 _LIBCPP_HIDE_FROM_ABI fpos operator-(streamoff __off) const {
53 fpos __t(*this);
54 __t -= __off;
55 return __t;
56 }
57};
58
59template <class _StateT>
60inline _LIBCPP_HIDE_FROM_ABI streamoff operator-(const fpos<_StateT>& __x, const fpos<_StateT>& __y) {
61 return streamoff(__x) - streamoff(__y);
62}
63
64template <class _StateT>
65inline _LIBCPP_HIDE_FROM_ABI bool operator==(const fpos<_StateT>& __x, const fpos<_StateT>& __y) {
66 return streamoff(__x) == streamoff(__y);
67}
68
69template <class _StateT>
70inline _LIBCPP_HIDE_FROM_ABI bool operator!=(const fpos<_StateT>& __x, const fpos<_StateT>& __y) {
71 return streamoff(__x) != streamoff(__y);
72}
73
74_LIBCPP_END_NAMESPACE_STD
75
76#endif // _LIBCPP___IOS_FPOS_H
77