Mercurial > gnulib
view tests/infinity.h @ 40236:e3496deebf30
isatty: Make it return true in Cygwin consoles on native Windows.
* lib/isatty.c: Include <string.h>.
(GetProcAddress): New macro.
(GetNamedPipeClientProcessIdFuncType): New type.
(GetNamedPipeClientProcessIdFunc): New variable.
(QueryFullProcessImageNameFuncType): New type.
(QueryFullProcessImageNameFunc): New variable.
(initialized): New variable.
(initialize): New function.
(IsCygwinConsoleHandle): New function.
(isatty): Invoke it.
* doc/posix-functions/isatty.texi: Mention the issue.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Thu, 14 Mar 2019 23:54:28 +0100 |
parents | b06060465f09 |
children |
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/* Macros for infinity. Copyright (C) 2011-2019 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