From f94f3e0df82cd9f1202b0741c6fcc83b3560cee8 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Tue, 10 Jan 2017 14:34:20 -0800 Subject: Avoid integer overflows in scriptnum tests --- src/test/scriptnum_tests.cpp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'src') diff --git a/src/test/scriptnum_tests.cpp b/src/test/scriptnum_tests.cpp index 6b6689c7d3..1d5893bdc3 100644 --- a/src/test/scriptnum_tests.cpp +++ b/src/test/scriptnum_tests.cpp @@ -12,8 +12,10 @@ BOOST_FIXTURE_TEST_SUITE(scriptnum_tests, BasicTestingSetup) -static const int64_t values[] = \ -{ 0, 1, CHAR_MIN, CHAR_MAX, UCHAR_MAX, SHRT_MIN, USHRT_MAX, INT_MIN, INT_MAX, UINT_MAX, LONG_MIN, LONG_MAX }; +/** A selection of numbers that do not trigger int64_t overflow + * when added/subtracted. */ +static const int64_t values[] = { 0, 1, -2, 127, 128, -255, 256, (1LL << 15) - 1, -(1LL << 16), (1LL << 24) - 1, (1LL << 31), 1 - (1LL << 32), 1LL << 40 }; + static const int64_t offsets[] = { 1, 0x79, 0x80, 0x81, 0xFF, 0x7FFF, 0x8000, 0xFFFF, 0x10000}; static bool verify(const CScriptNum10& bignum, const CScriptNum& scriptnum) -- cgit v1.2.3