From 28ef1abc10cfbc2c3d2747c008eb2300858d0426 Mon Sep 17 00:00:00 2001 From: Lorry Tar Creator Date: Fri, 22 Apr 2016 04:38:07 +0000 Subject: grep-2.25 --- lib/minmax.h | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 lib/minmax.h (limited to 'lib/minmax.h') diff --git a/lib/minmax.h b/lib/minmax.h new file mode 100644 index 0000000..be6b321 --- /dev/null +++ b/lib/minmax.h @@ -0,0 +1,60 @@ +/* MIN, MAX macros. + Copyright (C) 1995, 1998, 2001, 2003, 2005, 2009-2016 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, 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 . */ + +#ifndef _MINMAX_H +#define _MINMAX_H + +/* Note: MIN, MAX are also defined in on some systems + (glibc, IRIX, HP-UX, OSF/1). Therefore you might get warnings about + MIN, MAX macro redefinitions on some systems; the workaround is to + #include this file as the last one among the #include list. */ + +/* Before we define the following symbols we get the file + since otherwise we get redefinitions on some systems if is + included after this file. Likewise for . + If more than one of these system headers define MIN and MAX, pick just + one of the headers (because the definitions most likely are the same). */ +#if HAVE_MINMAX_IN_LIMITS_H +# include +#elif HAVE_MINMAX_IN_SYS_PARAM_H +# include +#endif + +/* Note: MIN and MAX should be used with two arguments of the + same type. They might not return the minimum and maximum of their two + arguments, if the arguments have different types or have unusual + floating-point values. For example, on a typical host with 32-bit 'int', + 64-bit 'long long', and 64-bit IEEE 754 'double' types: + + MAX (-1, 2147483648) returns 4294967295. + MAX (9007199254740992.0, 9007199254740993) returns 9007199254740992.0. + MAX (NaN, 0.0) returns 0.0. + MAX (+0.0, -0.0) returns -0.0. + + and in each case the answer is in some sense bogus. */ + +/* MAX(a,b) returns the maximum of A and B. */ +#ifndef MAX +# define MAX(a,b) ((a) > (b) ? (a) : (b)) +#endif + +/* MIN(a,b) returns the minimum of A and B. */ +#ifndef MIN +# define MIN(a,b) ((a) < (b) ? (a) : (b)) +#endif + +#endif /* _MINMAX_H */ -- cgit v1.2.1