1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_STRSTREAM
10
11// <strstream>
12
13// class strstreambuf
14
15// strstreambuf(signed char* gnext_arg, streamsize n, signed char* pbeg_arg = 0);
16
17#include <strstream>
18#include <cassert>
19#include <cstring>
20
21#include "test_macros.h"
22
23int main(int, char**)
24{
25 {
26 signed char buf[] = "abcd";
27 std::strstreambuf sb(buf, sizeof(buf));
28 assert(sb.sgetc() == 'a');
29 assert(sb.snextc() == 'b');
30 assert(sb.snextc() == 'c');
31 assert(sb.snextc() == 'd');
32 assert(sb.snextc() == 0);
33 assert(sb.snextc() == EOF);
34 }
35 {
36 signed char buf[] = "abcd";
37 std::strstreambuf sb(buf, 0);
38 assert(sb.sgetc() == 'a');
39 assert(sb.snextc() == 'b');
40 assert(sb.snextc() == 'c');
41 assert(sb.snextc() == 'd');
42 assert(sb.snextc() == EOF);
43 }
44 {
45 signed char buf[] = "abcd";
46 std::strstreambuf sb(buf, sizeof(buf), buf);
47 assert(sb.sgetc() == EOF);
48 assert(sb.sputc('e') == 'e');
49 assert(sb.sputc('f') == 'f');
50 assert(sb.sputc('g') == 'g');
51 assert(sb.sputc('h') == 'h');
52 assert(sb.sputc('i') == 'i');
53 assert(sb.sputc('j') == EOF);
54 assert(sb.sgetc() == 'e');
55 assert(sb.snextc() == 'f');
56 assert(sb.snextc() == 'g');
57 assert(sb.snextc() == 'h');
58 assert(sb.snextc() == 'i');
59 assert(sb.snextc() == EOF);
60 }
61 {
62 signed char buf[] = "abcd";
63 std::strstreambuf sb(buf, 0, buf);
64 assert(sb.sgetc() == EOF);
65 assert(sb.sputc('e') == 'e');
66 assert(sb.sputc('f') == 'f');
67 assert(sb.sputc('g') == 'g');
68 assert(sb.sputc('h') == 'h');
69 assert(sb.sputc('i') == EOF);
70 assert(sb.sgetc() == 'e');
71 assert(sb.snextc() == 'f');
72 assert(sb.snextc() == 'g');
73 assert(sb.snextc() == 'h');
74 assert(sb.snextc() == EOF);
75 }
76 {
77 signed char buf[10] = "abcd";
78 std::size_t s = std::strlen(s: (char*)buf);
79 std::strstreambuf sb(buf, sizeof(buf) - s, buf + s);
80 assert(sb.sgetc() == 'a');
81 assert(sb.snextc() == 'b');
82 assert(sb.snextc() == 'c');
83 assert(sb.snextc() == 'd');
84 assert(sb.snextc() == EOF);
85 assert(sb.sputc('e') == 'e');
86 assert(sb.sputc('f') == 'f');
87 assert(sb.sputc('g') == 'g');
88 assert(sb.sputc('h') == 'h');
89 assert(sb.sputc('i') == 'i');
90 assert(sb.sputc('j') == 'j');
91 assert(sb.sputc('j') == EOF);
92 assert(sb.sgetc() == 'e');
93 assert(sb.snextc() == 'f');
94 assert(sb.snextc() == 'g');
95 assert(sb.snextc() == 'h');
96 assert(sb.snextc() == 'i');
97 assert(sb.snextc() == 'j');
98 assert(sb.snextc() == EOF);
99 }
100
101 return 0;
102}
103

source code of libcxx/test/std/depr/depr.str.strstreams/depr.strstreambuf/depr.strstreambuf.cons/scp_size_scp.pass.cpp