From fa095a4504cbe668e4244547e2c141597bea4ecf Mon Sep 17 00:00:00 2001 From: Andreas Rottmann Date: Mon, 14 Sep 2009 12:32:44 +0200 Subject: Imported Upstream version 0.9.1 --- tests/nan.h | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 tests/nan.h (limited to 'tests/nan.h') diff --git a/tests/nan.h b/tests/nan.h new file mode 100644 index 00000000..8aa8bf00 --- /dev/null +++ b/tests/nan.h @@ -0,0 +1,60 @@ +/* Macros for not-a-number. + 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 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + + +/* NaNf () returns a 'float' not-a-number. */ + +/* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0. */ +#ifdef __DECC +static float +NaNf () +{ + static float zero = 0.0f; + return zero / zero; +} +#else +# define NaNf() (0.0f / 0.0f) +#endif + + +/* NaNd () returns a 'double' not-a-number. */ + +/* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0. */ +#ifdef __DECC +static double +NaNd () +{ + static double zero = 0.0; + return zero / zero; +} +#else +# define NaNd() (0.0 / 0.0) +#endif + + +/* NaNl () returns a 'long double' not-a-number. */ + +/* On Irix 6.5, gcc 3.4.3 can't compute compile-time NaN, and needs the + runtime type conversion. */ +#ifdef __sgi +static long double NaNl () +{ + double zero = 0.0; + return zero / zero; +} +#else +# define NaNl() (0.0L / 0.0L) +#endif -- cgit v1.2.3