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Added minimal example for VF bug involving testing for macro defines in headers.

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This commit is contained in:
Tobias Reinhard 2022-10-13 09:16:54 -04:00
parent 8ef03612b5
commit c71025fda0
4 changed files with 49 additions and 0 deletions
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17
verification/verifast/problems/bugs/define_name/testing_header.h Normal file
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// Problem: Both branches branch conditions evaluate to true.
/* `main.c` included this header after including `defining_header.h`.
* Hence, `#ifdef ABC` should evaluate to true and `#ifndef ABC should
* evaluate to false.
*/
/*
#ifdef ABC // ok: evaluates to true.
#error "ABC defined"
#endif
*/
#ifndef ABC // bug: evaluates to true
#error "ABC defined"
#endif