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// int_type overflow(int_type c = EOF);
16
17#include <strstream>
18#include <cassert>
19
20#include "test_macros.h"
21
22int main(int, char**)
23{
24 {
25 char buf[12] = "abc";
26 std::strstreambuf sb(buf, sizeof(buf), buf);
27 assert(sb.sputc('1') == '1');
28 assert(sb.str() == std::string("1bc"));
29 assert(sb.sputc('2') == '2');
30 assert(sb.str() == std::string("12c"));
31 assert(sb.sputc('3') == '3');
32 assert(sb.str() == std::string("123"));
33 assert(sb.sputc('4') == '4');
34 assert(sb.str() == std::string("1234"));
35 assert(sb.sputc('5') == '5');
36 assert(sb.str() == std::string("12345"));
37 assert(sb.sputc('6') == '6');
38 assert(sb.str() == std::string("123456"));
39 assert(sb.sputc('7') == '7');
40 assert(sb.str() == std::string("1234567"));
41 assert(sb.sputc('8') == '8');
42 assert(sb.str() == std::string("12345678"));
43 assert(sb.sputc('9') == '9');
44 assert(sb.str() == std::string("123456789"));
45 assert(sb.sputc('0') == '0');
46 assert(sb.str() == std::string("1234567890"));
47 assert(sb.sputc('1') == '1');
48 assert(sb.str() == std::string("12345678901"));
49 }
50
51 return 0;
52}
53

source code of libcxx/test/std/depr/depr.str.strstreams/depr.strstreambuf/depr.strstreambuf.virtuals/overflow.pass.cpp