libcxx/test/std/depr/depr.str.strstreams/depr.strstreambuf/depr.strstreambuf.cons/cscp_size.pass.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-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <strstream>
  10
  11 // class strstreambuf
  12
  13 // strstreambuf(const signed char* gnext_arg, streamsize n);
  14
  15 #include <strstream>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19
  20 int main(int, char**)
  21 {
  22     {
  23         const signed char buf[] = "abcd";
  24         std::strstreambuf sb(buf, sizeof(buf));
  25         assert(sb.sgetc() == 'a');
  26         assert(sb.snextc() == 'b');
  27         assert(sb.snextc() == 'c');
  28         assert(sb.snextc() == 'd');
  29         assert(sb.snextc() == 0);
  30         assert(sb.snextc() == EOF);
  31     }
  32     {
  33         const signed char buf[] = "abcd";
  34         std::strstreambuf sb(buf, 0);
  35         assert(sb.sgetc() == 'a');
  36         assert(sb.snextc() == 'b');
  37         assert(sb.snextc() == 'c');
  38         assert(sb.snextc() == 'd');
  39         assert(sb.snextc() == EOF);
  40     }
  41
  42   return 0;
  43 }