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 // UNSUPPORTED: 32-bit-pointer 10 // REQUIRES: large_tests 11 12 // Android devices frequently don't have enough memory to run this test. Rather 13 // than throw std::bad_alloc, exhausting memory triggers the OOM Killer. 14 // UNSUPPORTED: LIBCXX-ANDROID-FIXME 15 16 // Test that tellp() does not break the stringstream after INT_MAX, due to use 17 // of pbump() that accept int. 18 19 #include <cassert> 20 #include <climits> 21 #include <sstream> 22 #include <string> 23 24 int main(int, char**) { 25 std::stringstream ss; 26 std::string payload(INT_MAX - 1, '\0'); 27 28 ss.write(payload.data(), payload.size()); 29 assert(ss.tellp() == INT_MAX - 1); 30 31 ss.write("a", 1); 32 assert(ss.tellp() == INT_MAX); 33 34 ss.write("b", 1); 35 assert(ss.tellp() == INT_MAX + 1ULL); 36 // it fails only after previous tellp() corrupts the internal field with int 37 // overflow 38 assert(ss.tellp() == INT_MAX + 1ULL); 39 40 return 0; 41 } 42