cp_size_mode.pass.cpp (1228B)
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 ostrstream 13 14 // ostrstream(char* s, int n, ios_base::openmode mode = ios_base::out); 15 16 #include <strstream> 17 #include <cassert> 18 #include <string> 19 20 int main() 21 { 22 { 23 char buf[] = "123 4.5 dog"; 24 std::ostrstream out(buf, 0); 25 assert(out.str() == std::string("123 4.5 dog")); 26 int i = 321; 27 double d = 5.5; 28 std::string s("cat"); 29 out << i << ' ' << d << ' ' << s << std::ends; 30 assert(out.str() == std::string("321 5.5 cat")); 31 } 32 { 33 char buf[23] = "123 4.5 dog"; 34 std::ostrstream out(buf, 11, std::ios::app); 35 assert(out.str() == std::string("123 4.5 dog")); 36 int i = 321; 37 double d = 5.5; 38 std::string s("cat"); 39 out << i << ' ' << d << ' ' << s << std::ends; 40 assert(out.str() == std::string("123 4.5 dog321 5.5 cat")); 41 } 42 }