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[Frama-c-discuss] Small function on buffer doesn't verify
- Subject: [Frama-c-discuss] Small function on buffer doesn't verify
- From: hollas at informatik.htw-dresden.de (Boris Hollas)
- Date: Tue, 11 May 2010 17:21:40 +0200
Jessie is unable to verify the following code for reasons that I don't understand. I get "?" for postcondition, pointer dereferencing, arithmetic overflow. Using #define instead of const doesn't work either because it seems that Jessie doesn't read #defines. const int BUFF_SIZE = 4; /*@ requires \valid(msg+(0..BUFF_SIZE)); ensures msg[BUFF_SIZE] == '\0'; */ int setFoo(char* msg) { msg[BUFF_SIZE] = '\0'; msg[BUFF_SIZE-1] = '\0'; return 0; }
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