X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-roundl.c;h=ddbf4744417b3a87f0c1a62d7d0e190958dec7ab;hb=c7cf9c5005c207ccc24581f0bddb48a5864d443c;hp=1da3f441663bc20b1b8f3db1d7fb60de7794a71b;hpb=9d5d03ff00b8b11b51450ce107159b263efb1739;p=gnulib.git diff --git a/tests/test-roundl.c b/tests/test-roundl.c index 1da3f4416..ddbf47444 100644 --- a/tests/test-roundl.c +++ b/tests/test-roundl.c @@ -1,9 +1,9 @@ /* Test of rounding to nearest, breaking ties away from zero. - Copyright (C) 2007-2008 Free Software Foundation, Inc. + Copyright (C) 2007-2009 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) + the Free Software Foundation; either version 3, or (at your option) any later version. This program is distributed in the hope that it will be useful, @@ -28,6 +28,7 @@ #include "fpucw.h" #include "isnanl-nolibm.h" +#include "nan.h" #define ASSERT(expr) \ do \ @@ -43,10 +44,16 @@ /* On HP-UX 10.20, negating 0.0L does not yield -0.0L. So we use minus_zero instead. + IRIX cc can't put -0.0L into .data, but can compute at runtime. Note that the expression -LDBL_MIN * LDBL_MIN does not work on other platforms, such as when cross-compiling to PowerPC on MacOS X 10.5. */ #if defined __hpux || defined __sgi -long double minus_zero = -LDBL_MIN * LDBL_MIN; +static long double +compute_minus_zero (void) +{ + return -LDBL_MIN * LDBL_MIN; +} +# define minus_zero compute_minus_zero () #else long double minus_zero = -0.0L; #endif @@ -91,7 +98,7 @@ main () ASSERT (roundl (1.0 / 0.0L) == 1.0 / 0.0L); ASSERT (roundl (-1.0 / 0.0L) == -1.0 / 0.0L); /* NaNs. */ - ASSERT (isnanl (roundl (0.0L / 0.0L))); + ASSERT (isnanl (roundl (NaNl ()))); return 0; }