1MACROS(3)                  Library Functions Manual                  MACROS(3)
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NAME

6       IM_RINT, IM_MAX, IM_MIN - misc math macros
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SYNOPSIS

9       #include <vips/vips.h>
10       #include <vips/util.h>
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12       int IM_RINT( float )
13       any IM_MAX( any, any )
14       any IM_MIN( any, any )
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DESCRIPTION

18       These  macros provide some simple but fast math functions --- IM_MAX(3)
19       returns the maximum of its two arguments, IM_MIN(3) the  smallest,  and
20       IM_RINT(3) rounds a float or double to the nearest integer.
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22       Beware: these macros may evaluate their argument more than once, so you
23       MUST NOT use ++,--, or a function call in their argument lists.
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25       They are defined as:
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27         #define IM_MAX(A,B) ((A)>(B)?(A):(B))
28         #define IM_MIN(A,B) ((A)<(B)?(A):(B))
29         #define IM_RINT(R) ((int)((R)>0?((R)+0.5):((R)-0.5)))
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33       National Gallery, 1993
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SEE ALSO

36       im_malloc(3), im_open_local(3), `VIPS Library  Programmers'  Guide'  in
37       accompanying documentation.
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AUTHOR

40       J. Cupitt - 23/7/93
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44                                 11 April 1990                       MACROS(3)
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