.TH MACROS 3 "11 April 1990"
.SH NAME
IM_RINT, IM_MAX, IM_MIN \- misc math macros
.SH SYNOPSIS

.B #include <vips/vips.h>

int IM_RINT( float )
.br
any IM_MAX( any, any )
.br
any IM_MIN( any, any )

.SH DESCRIPTION

These macros provide some simple but fast math functions --- IM_MAX(3)
returns the maximum of its two arguments, IM_MIN(3) the smallest, and
IM_RINT(3) rounds a float or double to the nearest integer.

Beware: these macros may evaluate their argument more than once, so you MUST
NOT use ++,--, or a function call in their argument lists.

They are defined as:

  #define IM_MAX(A,B) ((A)>(B)?(A):(B))
  #define IM_MIN(A,B) ((A)<(B)?(A):(B))
  #define IM_RINT(R) ((int)((R)>0?((R)+0.5):((R)-0.5)))

.SH COPYRIGHT
National Gallery, 1993
.SH SEE ALSO
im_malloc(3), im_open_local(3).
.SH AUTHOR
J. Cupitt \- 23/7/93