53 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_STRSTREAM10 11// <strstream>12 13// class strstreambuf14 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