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16f6a8d8d8
This patch fixes one real bug in gl_anylinked_list2.h, along with some minor glitches that are not bugs. It does not silence PGI’s thousands of bogus warnings when compiling test-intprops.c. Fortunately, the warnings do not cause a failure. * lib/c-ctype.h (_C_CTYPE_LOWER_A_THRU_F_N, _C_CTYPE_LOWER_N): Rename parameter to avoid PGI warning about ‘#define f(n) 'n'’. My goodness, PGI goes back a long ways - this predates C89! * lib/gl_anylinked_list2.h (ASYNCSAFE): Fix bug caught by PGI. For example, ASYNCSAFE (const void *) should expand to ‘const void *volatile’, not to ‘volatile const void *’. * lib/spawn.in.h (POSIX_SPAWN_USEVFORK): Don't define if already defined. * lib/verify.h (verify) [!__GNUC__]: Use shorter albeit meaningless string to bypass silly compiler limits. * tests/infinity.h (Infinityf, Infinityd, Infinityl) [__PGI]: * tests/nan.h (NaNf, NaNd, NaNl): Use static functions to avoid misguided compiler diagnostics. Is there some reason we don’t use static functions on all platforms?
67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
/* Macros for infinity.
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Copyright (C) 2011-2017 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Infinityf () returns a 'float' +Infinity. */
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/* The Microsoft MSVC 9 compiler chokes on the expression 1.0f / 0.0f.
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The IBM XL C compiler on z/OS complains.
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PGI 16.10 complains. */
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#if defined _MSC_VER || (defined __MVS__ && defined __IBMC__) || defined __PGI
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static float
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Infinityf ()
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{
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static float zero = 0.0f;
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return 1.0f / zero;
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}
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#else
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# define Infinityf() (1.0f / 0.0f)
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#endif
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/* Infinityd () returns a 'double' +Infinity. */
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/* The Microsoft MSVC 9 compiler chokes on the expression 1.0 / 0.0.
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The IBM XL C compiler on z/OS complains.
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PGI 16.10 complains. */
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#if defined _MSC_VER || (defined __MVS__ && defined __IBMC__) || defined __PGI
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static double
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Infinityd ()
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{
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static double zero = 0.0;
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return 1.0 / zero;
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}
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#else
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# define Infinityd() (1.0 / 0.0)
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#endif
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/* Infinityl () returns a 'long double' +Infinity. */
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/* The Microsoft MSVC 9 compiler chokes on the expression 1.0L / 0.0L.
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The IBM XL C compiler on z/OS complains.
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PGI 16.10 complains. */
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#if defined _MSC_VER || (defined __MVS__ && defined __IBMC__) || defined __PGI
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static long double
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Infinityl ()
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{
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static long double zero = 0.0L;
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return 1.0L / zero;
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}
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#else
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# define Infinityl() (1.0L / 0.0L)
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#endif
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