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 // <streambuf> 11 12 // template <class charT, class traits = char_traits<charT> > 13 // class basic_streambuf; 14 15 // streamsize xsputn(const char_type* s, streamsize n); 16 17 #include <streambuf> 18 #include <cassert> 19 20 struct test 21 : public std::basic_streambuf<char> 22 { 23 typedef std::basic_streambuf<char> base; 24 25 test() {} 26 27 void setp(char* pbeg, char* pend) 28 { 29 base::setp(pbeg, pend); 30 } 31 }; 32 33 int main() 34 { 35 { 36 test t; 37 char in[] = "123456"; 38 assert(t.sputn(in, sizeof(in)) == 0); 39 char out[sizeof(in)] = {0}; 40 t.setp(out, out+sizeof(out)); 41 assert(t.sputn(in, sizeof(in)) == sizeof(in)); 42 assert(strcmp(in, out) == 0); 43 } 44 } 45
