| 1 | // RUN: %clangxx -fsanitize=pointer-overflow %s -o %t |
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| 2 | // RUN: %run %t 2 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=ERR2 |
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| 3 | // RUN: %run %t 1 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=ERR1 |
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| 4 | // RUN: %run %t 0 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=SAFE |
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| 5 | // RUN: %run %t -1 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=SAFE |
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| 6 | // RUN: %run %t -2 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=SAFE |
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| 7 | |
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| 8 | #include <stdio.h> |
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| 9 | #include <stdint.h> |
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| 10 | #include <stdlib.h> |
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| 11 | |
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| 12 | int main(int argc, char *argv[]) { |
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| 13 | // SAFE-NOT: runtime error |
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| 14 | // ERR2: runtime error: pointer index expression with base {{.*}} overflowed to |
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| 15 | // ERR2: runtime error: pointer index expression with base {{.*}} overflowed to |
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| 16 | // ERR1: runtime error: applying non-zero offset to non-null pointer 0x{{.*}} produced null pointer |
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| 17 | // ERR1: runtime error: applying non-zero offset to non-null pointer 0x{{.*}} produced null pointer |
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| 18 | |
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| 19 | char *p = (char *)(UINTPTR_MAX); |
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| 20 | |
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| 21 | printf(format: "%p\n" , p + atoi(nptr: argv[1])); |
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| 22 | |
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| 23 | char *q = (char *)(UINTPTR_MAX); |
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| 24 | |
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| 25 | printf(format: "%p\n" , p - (-atoi(nptr: argv[1]))); |
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| 26 | |
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| 27 | return 0; |
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| 28 | } |
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| 29 | |
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