1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// <strstream> 11 12// class strstreambuf 13 14// strstreambuf(const unsigned char* gnext_arg, streamsize n); 15 16#include <strstream> 17#include <cassert> 18 19int main() 20{ 21 { 22 unsigned char buf[] = "abcd"; 23 std::strstreambuf sb(buf, sizeof(buf)); 24 assert(sb.sgetc() == 'a'); 25 assert(sb.snextc() == 'b'); 26 assert(sb.snextc() == 'c'); 27 assert(sb.snextc() == 'd'); 28 assert(sb.snextc() == 0); 29 assert(sb.snextc() == EOF); 30 } 31 { 32 unsigned char buf[] = "abcd"; 33 std::strstreambuf sb(buf, 0); 34 assert(sb.sgetc() == 'a'); 35 assert(sb.snextc() == 'b'); 36 assert(sb.snextc() == 'c'); 37 assert(sb.snextc() == 'd'); 38 assert(sb.snextc() == EOF); 39 } 40} 41