%description:
Test the int64 data type and its printf format. The trend is long long
and %lld (on 32-bit archs), but not all compilers support it yet.

                64-bit integer type    printf format
Linux gcc 4.1/32     long long              %lld
Linux gcc 4.1/64       long (!)             %ld (!)
MinGW (gcc3.4.5)     long long              %I64d (!)
Visual C++ 7.1        __int64               %I64d
Visual C++ 8.0+   long long, __int64      %lld, %I64d

%activity:
#define LL  INT64_PRINTF_FORMAT

int64_t a=1, b=2;
EV << "sizeof(a)=" << sizeof(a) << "\n";
EV << "a=" << a << " b=" << b << " pi=" << 3.14 << "\n";

%contains: stdout
sizeof(a)=8
a=1 b=2 pi=3.14