Re: [PATCH v3] coccinelle: tests: unsigned value cannot be lesser than zero
From: Andrzej Hajda
Date: Wed Sep 23 2015 - 03:35:10 EST
On 09/22/2015 05:27 PM, SF Markus Elfring wrote:
>> If you mean adding int to 'unsigned long [long]' types, it does not work.
>> For some reason it works only without adding int after long.
> Do you get any error message for this SmPL approach?
> With which source files do you try the extended SmPL script out?
>
> Regards,
> Markus
>
No, spatch just does not find everything it should. Sample below:
--- test.cocci
virtual context
@r depends on context@
{unsigned char, unsigned short int, unsigned int, unsigned long int, unsigned
long long, size_t} v;
@@
*v
--- test.c
void f()
{
unsigned long ul;
unsigned long int uli;
unsigned long long ull;
unsigned long long int ulli;
ul;
uli;
ull;
ulli;
}
---
In the example above spatch finds ull, ulli, but not ul and uli.
If you add int to unsigned long long, it won't find anything.
Regards
Andrzej
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