| .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 |
