• David Grimes (11/11) Oct 04 2003 #include
• Gisle Vanem (8/14) Oct 04 2003 Can you pass args to powl() that fails __fdclassify* and expect

"David Grimes" <dgrimes friberg.us> writes:

#include <math.h>
#include <stdio.h>
#include <stdlib.h>

int main(){
printf("1^inf = %Lg\n", powl(1.0l, strtold("inf", 0)));
return 0;
}

The output of the above code compiled with DMC v8.36 is: 1^inf = nan
Do you have plans to conform the compiler to IEC 60599?

Thanks,
David

"Gisle Vanem" <giva users.sourceforge.net> writes:

"David Grimes" <dgrimes friberg.us> wrote:

 int main(){
 printf("1^inf = %Lg\n", powl(1.0l, strtold("inf", 0)));
 return 0;
 }

 The output of the above code compiled with DMC v8.36 is: 1^inf = nan
 Do you have plans to conform the compiler to IEC 60599?

Can you pass args to powl() that fails __fdclassify* and expect
meaningful results? Try:

  long double x = strtold("inf",0);
  if (isnormal(x))
    printf("1^inf = %Lg\n", powl(1.0l, x));
  else puts ("NaN");

--gv