MAX(3) - f37

1MAX(3)                     Linux Programmer's Manual                    MAX(3)
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NAME

6       MAX, MIN - maximum or minimum of two values
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SYNOPSIS

9       #include <sys/param.h>
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11       MAX(a, b);
12       MIN(a, b);
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DESCRIPTION

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

18       These  macros return the value of one of their arguments, possibly con‐
19       verted to a different type (see BUGS).
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ERRORS

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

26       These nonstandard macros are present in glibc and the BSDs.
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NOTES

29       If  either of the arguments is of a floating-point type, you might pre‐
30       fer to use fmax(3) or fmin(3), which can handle NaN.
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32       The arguments may be evaluated more than once, or not at all.
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34       Some UNIX systems might provide these macros in a different header,  or
35       not at all.
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BUGS

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

43       #include <stdio.h>
44       #include <stdlib.h>
45       #include <sys/param.h>
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47       int
48       main(int argc, char *argv[])
49       {
50           int a, b, x;
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52           if (argc != 3) {
53               fprintf(stderr, "Usage: %s <num> <num>\n", argv[0]);
54               exit(EXIT_FAILURE);
55           }
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57           a = atoi(argv[1]);
58           b = atoi(argv[2]);
59           x = MAX(a, b);
60           printf("MAX(%d, %d) is %d\n", a, b, x);
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62           exit(EXIT_SUCCESS);
63       }
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COLOPHON

69       This  page  is  part of release 5.13 of the Linux man-pages project.  A
70       description of the project, information about reporting bugs,  and  the
71       latest     version     of     this    page,    can    be    found    at
72       https://www.kernel.org/doc/man-pages/.
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76Linux                             2020-11-01                            MAX(3)