On Sat, Oct 06, 2007 at 10:15:28AM +0400, Alexander Kotelnikov wrote: > Hi. > > 0:14 pts/10 [EMAIL PROTECTED]:/tmp 5> cat dblc.c > #include <assert.h> > #include <float.h> > #include <math.h> > #include <stdio.h> > > int main() { > double x; > > printf("%s%d\n", "DBL_MANT_DIG = ", DBL_MANT_DIG); > x = ldexp (1.0, DBL_MANT_DIG) - 1.0; > printf("%lf %lf\n", x, floor(x)); > assert(x == floor(x)); /* does not seem to work in alpha */ > return 0; > } > 10:14 pts/10 [EMAIL PROTECTED]:/tmp 6> gcc -Wall -lm -o dblc dblc.c > 10:14 pts/10 [EMAIL PROTECTED]:/tmp 7> ./dblc > DBL_MANT_DIG = 53 > 9007199254740991.000000 9007199254740991.000000 > 10:14 pts/10 [EMAIL PROTECTED]:/tmp 8> uname -a > Linux vinci 2.6.23-rc8-rt2x00-gc31d1777-dirty #1 Wed Oct 3 11:44:23 MSD 2007 > alpha GNU/Linux
Does the kernel have MATH_EMU enabled or not? What cpu generation? Which libm version (libc6 package)? -- Len Sorensen -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]