Incorrect grammar for loop-behavior in document
ID0002021: This issue was created automatically from Mantis Issue 2021. Further discussion may take place here.
| Id | Project | Category | View | Due Date | Updated |
|---|---|---|---|---|---|
| ID0002021 | Frama-C | Documentation > ACSL | public | 2014-12-05 | 2016-01-26 |
| Reporter | gaggarwal | Assigned To | patrick | Resolution | fixed |
| Priority | normal | Severity | minor | Reproducibility | always |
| Platform | - | OS | - | OS Version | - |
| Product Version | Frama-C Neon-20140301 | Target Version | - | Fixed in Version | Frama-C Magnesium |
Description :
Grammar for loop-behavior in Fig2.9 in acsl.pdf (http://frama-c.com/download/acsl.pdf), page 36, has bug. loop-behavior has following grammar:
loop-behavior := for id (, id)* : loop-clause*which means that having atleast one loop clause is not necessary. But if I don't add any loop-clause frama-c throws warning: unexpected token ' ' in line XX
Steps To Reproduce :
Following example is correct as per the grammar of loop-behavior. But frama-c throws warning.
/*@ requires n>=0;
behavior fail :
ensures \result == -1;
/
int example(double t[], int n, double v ){
int l=0, u= n-1;
/@ loop invariant 0 <=l && u <= n-1;
for fail:
*/
while(l <= u){
l++;
}
return -1;
}
Note: this is contrived example