| 1 | // RUN: %clang -fsanitize=pointer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-C --implicit-check-not="pointer-overflow" |
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| 2 | // RUN: %clangxx -x c++ -fsanitize=pointer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-CPP --implicit-check-not="pointer-overflow" |
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| 3 | |
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| 4 | #include <stdlib.h> |
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| 5 | |
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| 6 | int main(int argc, char *argv[]) { |
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| 7 | char *base, *result; |
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| 8 | |
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| 9 | base = (char *)0; |
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| 10 | result = base + 0; |
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| 11 | // CHECK-C: pointer-overflow by 0x{{[[:xdigit:]]+$}} |
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| 12 | // CHECK-CPP-NOT: pointer-overflow |
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| 13 | |
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| 14 | base = (char *)0; |
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| 15 | result = base + 1; |
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| 16 | // CHECK: pointer-overflow by 0x{{[[:xdigit:]]+$}} |
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| 17 | |
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| 18 | base = (char *)1; |
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| 19 | result = base - 1; |
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| 20 | // CHECK: pointer-overflow by 0x{{[[:xdigit:]]+$}} |
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| 21 | |
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| 22 | return 0; |
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| 23 | } |
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| 24 | |
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