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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <strstream>
// class strstreambuf
// int_type overflow(int_type c = EOF);
#include <strstream>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
{
char buf[12] = "abc";
std::strstreambuf sb(buf, sizeof(buf), buf);
assert(sb.sputc('1') == '1');
assert(sb.str() == std::string("1bc"));
assert(sb.sputc('2') == '2');
assert(sb.str() == std::string("12c"));
assert(sb.sputc('3') == '3');
assert(sb.str() == std::string("123"));
assert(sb.sputc('4') == '4');
assert(sb.str() == std::string("1234"));
assert(sb.sputc('5') == '5');
assert(sb.str() == std::string("12345"));
assert(sb.sputc('6') == '6');
assert(sb.str() == std::string("123456"));
assert(sb.sputc('7') == '7');
assert(sb.str() == std::string("1234567"));
assert(sb.sputc('8') == '8');
assert(sb.str() == std::string("12345678"));
assert(sb.sputc('9') == '9');
assert(sb.str() == std::string("123456789"));
assert(sb.sputc('0') == '0');
assert(sb.str() == std::string("1234567890"));
assert(sb.sputc('1') == '1');
assert(sb.str() == std::string("12345678901"));
}
return 0;
}
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