netcdf-c/include/rnd.h
2011-07-12 17:58:42 +00:00

18 lines
506 B
C

/*
* Copyright 1996, University Corporation for Atmospheric Research
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
*/
/* $Id: rnd.h,v 2.13 1996/12/11 05:46:54 davis Exp $ */
#ifndef _RNDUP
/* useful for aligning memory */
#define _RNDUP(x, unit) ((((x) + (unit) - 1) / (unit)) \
* (unit))
#define _RNDDOWN(x, unit) ((x) - ((x)%(unit)))
#define M_RND_UNIT (sizeof(double))
#define M_RNDUP(x) _RNDUP(x, M_RND_UNIT)
#define M_RNDDOWN(x) __RNDDOWN(x, M_RND_UNIT)
#endif