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C++: Add test case exposing problem with overflows for upperBound predicate

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This commit is contained in:
Anders Fugmann
2021-09-24 11:44:05 +02:00
parent a031b2a090
commit d7afd86a27
3 changed files with 17 additions and 0 deletions
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4
cpp/ql/test/library-tests/rangeanalysis/SimpleRangeAnalysis/lowerBound.expected
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@@ -599,6 +599,10 @@
| test.c:675:7:675:7 | y | -2147483648 |
| test.c:684:7:684:7 | x | -2147483648 |
| test.c:689:7:689:7 | x | -2147483648 |
| test.c:696:8:696:8 | x | 2147483647 |
| test.c:696:12:696:12 | y | 256 |
| test.c:697:9:697:9 | x | 2147483647 |
| test.c:698:9:698:9 | y | 256 |
| test.cpp:10:7:10:7 | b | -2147483648 |
| test.cpp:11:5:11:5 | x | -2147483648 |
| test.cpp:13:10:13:10 | x | -2147483648 |

9
cpp/ql/test/library-tests/rangeanalysis/SimpleRangeAnalysis/test.c
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@@ -689,3 +689,12 @@ label:
out(x);
goto label;
}
void test_overflow() {
const int x = 2147483647; // 2^31-1
const int y = 256;
if ((x + y) <= 512) {
out(x);
out(y);
}
}

4
cpp/ql/test/library-tests/rangeanalysis/SimpleRangeAnalysis/upperBound.expected
View File

@@ -599,6 +599,10 @@
| test.c:675:7:675:7 | y | 2147483647 |
| test.c:684:7:684:7 | x | 2147483647 |
| test.c:689:7:689:7 | x | 15 |
| test.c:696:8:696:8 | x | 2147483647 |
| test.c:696:12:696:12 | y | 256 |
| test.c:697:9:697:9 | x | 256 |
| test.c:698:9:698:9 | y | -2147483135 |
| test.cpp:10:7:10:7 | b | 2147483647 |
| test.cpp:11:5:11:5 | x | 2147483647 |
| test.cpp:13:10:13:10 | x | 2147483647 |