MAX(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | CONFORMING TO | NOTES | BUGS | EXAMPLES | SEE ALSO | COLOPHON

MAX(3)                  Linux Programmer's Manual                 MAX(3)

NAME         top

       MAX, MIN - maximum or minimum of two values

SYNOPSIS         top

       #include <sys/param.h>

       MAX(a, b);
       MIN(a, b);

DESCRIPTION         top

       These macros return the maximum or minimum of a and b.

RETURN VALUE         top

       These macros return the value of one of their arguments, possibly
       converted to a different type (see BUGS).

ERRORS         top

       These macros may raise the "invalid" floating-point exception
       when any of the arguments is NaN.

CONFORMING TO         top

       These nonstandard macros are present in glibc and the BSDs.

NOTES         top

       If either of the arguments is of a floating-point type, you might
       prefer to use fmax(3) or fmin(3), which can handle NaN.

       The arguments may be evaluated more than once, or not at all.

       Some UNIX systems might provide these macros in a different
       header, or not at all.

BUGS         top

       Due to the usual arithmetic conversions, the result of these
       macros may be very different from either of the arguments.  To
       avoid this, ensure that both arguments have the same type.

EXAMPLES         top

       #include <stdio.h>
       #include <stdlib.h>
       #include <sys/param.h>

       int
       main(int argc, char *argv[])
       {
           int a, b, x;

           if (argc != 3) {
               fprintf(stderr, "Usage: %s <num> <num>\n", argv[0]);
               exit(EXIT_FAILURE);
           }

           a = atoi(argv[1]);
           b = atoi(argv[2]);
           x = MAX(a, b);
           printf("MAX(%d, %d) is %d\n", a, b, x);

           exit(EXIT_SUCCESS);
       }

SEE ALSO         top

       fmax(3), fmin(3)

COLOPHON         top

       This page is part of release 5.13 of the Linux man-pages project.
       A description of the project, information about reporting bugs,
       and the latest version of this page, can be found at
       https://www.kernel.org/doc/man-pages/.

Linux                          2020-11-01                         MAX(3)