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 // void pbump(int n); 16 // 17 // REQUIRES: long_tests 18 19 // This test allocates 4GiB of 'a', which is not possible on a typical mobile 20 // device. 21 // UNSUPPORTED: android 22 23 #include <sstream> 24 #include <cassert> 25 #include "test_macros.h" 26 27 struct SB : std::stringbuf 28 { SBSB29 SB() : std::stringbuf(std::ios::ate|std::ios::out) { } pubpbaseSB30 const char* pubpbase() const { return pbase(); } pubpptrSB31 const char* pubpptr() const { return pptr(); } 32 }; 33 main()34int main() 35 { 36 #ifndef TEST_HAS_NO_EXCEPTIONS 37 try { 38 #endif 39 std::string str(2147483648, 'a'); 40 SB sb; 41 sb.str(str); 42 assert(sb.pubpbase() <= sb.pubpptr()); 43 #ifndef TEST_HAS_NO_EXCEPTIONS 44 } 45 catch (const std::length_error &) {} // maybe the string can't take 2GB 46 catch (const std::bad_alloc &) {} // maybe we don't have enough RAM 47 #endif 48 } 49