Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/ubsan/pr83555.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
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// PR c++/83555 // { dg-do run } // { dg-options "-fsanitize=null" } // { dg-output ":25:\[^\n\r]*reference binding to null pointer of type 'struct C'" } struct A { int a; }; struct B { int b; }; struct C : A, B { int c; }; __attribute__((noipa)) C * foo (B *b) { return static_cast<C *>(b); } __attribute__((noipa)) C * bar (B *b) { return &static_cast<C &>(*b); } __attribute__((noipa)) C * baz (B *b) { return &static_cast<C &>(*b); } int main () { C c; if (foo (static_cast<B *> (&c)) != &c) __builtin_abort (); if (foo (0)) __builtin_abort (); if (bar (static_cast<B *> (&c)) != &c) __builtin_abort (); baz (0); return 0; }