15a83710eSEric Fiselier //===----------------------------------------------------------------------===// 25a83710eSEric Fiselier // 357b08b09SChandler Carruth // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 457b08b09SChandler Carruth // See https://llvm.org/LICENSE.txt for license information. 557b08b09SChandler Carruth // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 65a83710eSEric Fiselier // 75a83710eSEric Fiselier //===----------------------------------------------------------------------===// 85a83710eSEric Fiselier 95a83710eSEric Fiselier // <streambuf> 105a83710eSEric Fiselier 115a83710eSEric Fiselier // template <class charT, class traits = char_traits<charT> > 125a83710eSEric Fiselier // class basic_streambuf; 135a83710eSEric Fiselier 145a83710eSEric Fiselier // streamsize sputn(const char_type* s, streamsize n); 155a83710eSEric Fiselier 165a83710eSEric Fiselier #include <streambuf> 175a83710eSEric Fiselier #include <cassert> 185a83710eSEric Fiselier 19*7fc6a556SMarshall Clow #include "test_macros.h" 20*7fc6a556SMarshall Clow 215a83710eSEric Fiselier int xsputn_called = 0; 225a83710eSEric Fiselier 235a83710eSEric Fiselier struct test 245a83710eSEric Fiselier : public std::basic_streambuf<char> 255a83710eSEric Fiselier { testtest265a83710eSEric Fiselier test() {} 275a83710eSEric Fiselier 285a83710eSEric Fiselier protected: xsputntest297626f778SEric Fiselier std::streamsize xsputn(const char_type*, std::streamsize) 305a83710eSEric Fiselier { 315a83710eSEric Fiselier ++xsputn_called; 325a83710eSEric Fiselier return 5; 335a83710eSEric Fiselier } 345a83710eSEric Fiselier }; 355a83710eSEric Fiselier main(int,char **)362df59c50SJF Bastienint main(int, char**) 375a83710eSEric Fiselier { 385a83710eSEric Fiselier test t; 395a83710eSEric Fiselier assert(xsputn_called == 0); 405a83710eSEric Fiselier assert(t.sputn(0, 0) == 5); 415a83710eSEric Fiselier assert(xsputn_called == 1); 422df59c50SJF Bastien 432df59c50SJF Bastien return 0; 445a83710eSEric Fiselier } 45