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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
//
//===----------------------------------------------------------------------===//
// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS -D_LIBCPP_ENABLE_CXX26_REMOVED_STRSTREAM
// <strstream>
// class strstreambuf
// strstreambuf(unsigned char* gnext_arg, streamsize n, unsigned char* pbeg_arg = 0);
#include <strstream>
#include <cassert>
#include <cstring>
#include "test_macros.h"
int main(int, char**)
{
{
unsigned char buf[] = "abcd";
std::strstreambuf sb(buf, sizeof(buf));
assert(sb.sgetc() == 'a');
assert(sb.snextc() == 'b');
assert(sb.snextc() == 'c');
assert(sb.snextc() == 'd');
assert(sb.snextc() == 0);
assert(sb.snextc() == EOF);
}
{
unsigned char buf[] = "abcd";
std::strstreambuf sb(buf, 0);
assert(sb.sgetc() == 'a');
assert(sb.snextc() == 'b');
assert(sb.snextc() == 'c');
assert(sb.snextc() == 'd');
assert(sb.snextc() == EOF);
}
{
unsigned char buf[] = "abcd";
std::strstreambuf sb(buf, sizeof(buf), buf);
assert(sb.sgetc() == EOF);
assert(sb.sputc('e') == 'e');
assert(sb.sputc('f') == 'f');
assert(sb.sputc('g') == 'g');
assert(sb.sputc('h') == 'h');
assert(sb.sputc('i') == 'i');
assert(sb.sputc('j') == EOF);
assert(sb.sgetc() == 'e');
assert(sb.snextc() == 'f');
assert(sb.snextc() == 'g');
assert(sb.snextc() == 'h');
assert(sb.snextc() == 'i');
assert(sb.snextc() == EOF);
}
{
unsigned char buf[] = "abcd";
std::strstreambuf sb(buf, 0, buf);
assert(sb.sgetc() == EOF);
assert(sb.sputc('e') == 'e');
assert(sb.sputc('f') == 'f');
assert(sb.sputc('g') == 'g');
assert(sb.sputc('h') == 'h');
assert(sb.sputc('i') == EOF);
assert(sb.sgetc() == 'e');
assert(sb.snextc() == 'f');
assert(sb.snextc() == 'g');
assert(sb.snextc() == 'h');
assert(sb.snextc() == EOF);
}
{
unsigned char buf[10] = "abcd";
std::size_t s = std::strlen((char*)buf);
std::strstreambuf sb(buf, sizeof(buf) - s, buf + s);
assert(sb.sgetc() == 'a');
assert(sb.snextc() == 'b');
assert(sb.snextc() == 'c');
assert(sb.snextc() == 'd');
assert(sb.snextc() == EOF);
assert(sb.sputc('e') == 'e');
assert(sb.sputc('f') == 'f');
assert(sb.sputc('g') == 'g');
assert(sb.sputc('h') == 'h');
assert(sb.sputc('i') == 'i');
assert(sb.sputc('j') == 'j');
assert(sb.sputc('j') == EOF);
assert(sb.sgetc() == 'e');
assert(sb.snextc() == 'f');
assert(sb.snextc() == 'g');
assert(sb.snextc() == 'h');
assert(sb.snextc() == 'i');
assert(sb.snextc() == 'j');
assert(sb.snextc() == EOF);
}
return 0;
}
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