Julian Brierley ([EMAIL PROTECTED]) wrote:
> Hans-Juergen Taenzer wrote:
>> doing some tests with the new version, I have encountered a
>> problem:
>>
>> void testva(void)
>> {
>> char *s;
>> unsigned long ul1 = 0x7FFFFFFF;
>> unsigned long ul2 = 0xFFFFFFFF;
>>
>> s = sqlite3_mprintf("%lu", ul1);
>> printf("ul1: %lx, %s\n", ul1, s);
>>
>> s = sqlite3_mprintf("%lu", ul2);
>> printf("ul2: %lx, %s\n", ul2, s);
>>
>> printf("sizeof(unsigned long): %u\n", sizeof(unsigned long));
>> }
>>
>> Output is:
>>
>> ul1: 7fffffff, 2147483647
>> ul2: ffffffff, 18446744073709551615
>> sizeof(unsigned long): 4
>>
>> Is this the expected behavior? Compiler is MSVC 6.
> Perhaps if the two lines of code starting at 349 in printf.c were
> changed from:
> else if( flag_long ) longvalue = va_arg(ap,long int);
> else longvalue = va_arg(ap,int);
> to somthing like:
> else if( flag_long )
> {
> if (infop->flags & FLAG_SIGNED)
> longvalue = va_arg(ap,long int);
> else
> longvalue = va_arg(ap,unsigned long int);
> }
> else
> {
> if (infop->flags & FLAG_SIGNED)
> longvalue = va_arg(ap,int);
> else
> longvalue = va_arg(ap,unsigned int);
> }
> You would get what you expect for %lu and %u?
> ul1: 7fffffff, 2147483647
> ul2: ffffffff, 4294967295
I haven't tried it yet. I think this function (or the workhorse vxprintf)
is very important for sqlite. I think its to dangerous to change without
good knowledge of sqlite.
I've opened a ticket.
The different behavior between 2.8 and 3.0 makes it somewhat difficult to
migrate my databases to sqlite 3.0.
Hans-Jürgen
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