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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <strstream>
// class strstreambuf
// strstreambuf(signed char* gnext_arg, streamsize n, signed char* pbeg_arg = 0);
#include <strstream>
#include <cassert>
int main()
{
{
signed 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);
}
{
signed 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);
}
{
signed 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);
}
{
signed 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);
}
{
signed char buf[10] = "abcd";
int 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);
}
}
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