| /* MIN, MAX macros. |

| Copyright (C) 1995, 1998, 2001, 2003, 2005, 2009-2021 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 <https://www.gnu.org/licenses/>. */ |

| |

| #ifndef _MINMAX_H |

| #define _MINMAX_H |

| |

| /* Note: MIN, MAX are also defined in <sys/param.h> 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 <limits.h> file |

| since otherwise we get redefinitions on some systems if <limits.h> is |

| included after this file. Likewise for <sys/param.h>. |

| 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 <limits.h> |

| #elif HAVE_MINMAX_IN_SYS_PARAM_H |

| # include <sys/param.h> |

| #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 */ |