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Diffstat (limited to 'gnulib-tests/infinity.h')
-rw-r--r-- | gnulib-tests/infinity.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/gnulib-tests/infinity.h b/gnulib-tests/infinity.h new file mode 100644 index 0000000..9802640 --- /dev/null +++ b/gnulib-tests/infinity.h @@ -0,0 +1,66 @@ +/* Macros for infinity. + Copyright (C) 2011-2018 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 <https://www.gnu.org/licenses/>. */ + + +/* Infinityf () returns a 'float' +Infinity. */ + +/* The Microsoft MSVC 9 compiler chokes on the expression 1.0f / 0.0f. + The IBM XL C compiler on z/OS complains. + PGI 16.10 complains. */ +#if defined _MSC_VER || (defined __MVS__ && defined __IBMC__) || defined __PGI +static float +Infinityf () +{ + static float zero = 0.0f; + return 1.0f / zero; +} +#else +# define Infinityf() (1.0f / 0.0f) +#endif + + +/* Infinityd () returns a 'double' +Infinity. */ + +/* The Microsoft MSVC 9 compiler chokes on the expression 1.0 / 0.0. + The IBM XL C compiler on z/OS complains. + PGI 16.10 complains. */ +#if defined _MSC_VER || (defined __MVS__ && defined __IBMC__) || defined __PGI +static double +Infinityd () +{ + static double zero = 0.0; + return 1.0 / zero; +} +#else +# define Infinityd() (1.0 / 0.0) +#endif + + +/* Infinityl () returns a 'long double' +Infinity. */ + +/* The Microsoft MSVC 9 compiler chokes on the expression 1.0L / 0.0L. + The IBM XL C compiler on z/OS complains. + PGI 16.10 complains. */ +#if defined _MSC_VER || (defined __MVS__ && defined __IBMC__) || defined __PGI +static long double +Infinityl () +{ + static long double zero = 0.0L; + return 1.0L / zero; +} +#else +# define Infinityl() (1.0L / 0.0L) +#endif |