I recently tried the following code (platform : PC/Linux, gcc version 3.2) :
#include <limits> #include <iostream>
using namespace std;
int main(int argc, char *argv[])
{
cout << "is IEEE754 = " << numeric_limits<double>::is_iec559<<endl;
cout << "has infinity = " << numeric_limits<double>::has_infinity<<endl;cout << "infinity > 100 ? " << (numeric_limits<double>::infinity() >100) <<endl;
cout << "infinity= " <<numeric_limits<double>::infinity()<<endl;
return 1;
}
It shows that gcc does not handle the IEEE 754 standard on this platform, even if support for this standard is available on this processor (The same program run on win/mscv on the same computer shows handling for IEEE754).
Is there any compiler flag, or anything, to make gcc compatible with this standard? Is there any (good) reason why gcc is not and will never be compliant?
Best regards,
-- Loïc
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