| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // UNSUPPORTED: 32-bit-pointer |
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| 10 | // REQUIRES: large_tests |
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| 11 | |
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| 12 | // This bug was fixed in the dylib by 53aed4759b33e33614e0f4e321bc1ef764b6d5b6. |
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| 13 | // XFAIL: using-built-library-before-llvm-17 |
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| 14 | |
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| 15 | // Android devices frequently don't have enough memory to run this test. Rather |
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| 16 | // than throw std::bad_alloc, exhausting memory triggers the OOM Killer. |
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| 17 | // UNSUPPORTED: LIBCXX-ANDROID-FIXME |
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| 18 | |
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| 19 | // Test that tellp() does not break the stringstream after INT_MAX, due to use |
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| 20 | // of pbump() that accept int. |
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| 21 | |
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| 22 | #include <cassert> |
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| 23 | #include <climits> |
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| 24 | #include <sstream> |
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| 25 | #include <string> |
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| 26 | |
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| 27 | int main(int, char**) { |
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| 28 | std::stringstream ss; |
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| 29 | std::string payload(INT_MAX - 1, '\0'); |
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| 30 | |
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| 31 | ss.write(s: payload.data(), n: payload.size()); |
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| 32 | assert(ss.tellp() == INT_MAX - 1); |
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| 33 | |
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| 34 | ss.write(s: "a" , n: 1); |
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| 35 | assert(ss.tellp() == INT_MAX); |
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| 36 | |
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| 37 | ss.write(s: "b" , n: 1); |
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| 38 | assert(ss.tellp() == INT_MAX + 1ULL); |
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| 39 | // it fails only after previous tellp() corrupts the internal field with int |
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| 40 | // overflow |
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| 41 | assert(ss.tellp() == INT_MAX + 1ULL); |
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| 42 | |
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| 43 | return 0; |
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| 44 | } |
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| 45 | |
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