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/*
****************************************************************
* G_zero_cell_buf (buf)
* char *buf cell buffer to be zeroed
*
* G_zero_raster_buf (void *rast, RASTER_MAP_TYPE data_type)
*
* Zeros out a cell buffer
****************************************************************/
#include "gis.h"
/*!
* \brief zero a raster buffer
*
* This routines assigns each member of the raster buffer array <b>buf</b> to zero.
* It assumes that <b>buf</b> has been allocated using
* <i>G_allocate_cell_buf.</i>
*
* \param buf
* \return int
*/
int G_zero_cell_buf (register CELL *buf)
{
register int i ;
i = G_window_cols() ;
while(i--)
*buf++ = 0 ;
return 0;
}
int G_zero_raster_buf ( register void *rast,
RASTER_MAP_TYPE data_type)
{
register int i ;
register unsigned char *ptr;
/* assuming that the size of unsigned char is 1 byte */
i = G_window_cols() * G_raster_size(data_type) ;
ptr = (unsigned char *) rast;
while(i--)
*ptr++ = 0 ;
return 0;
}
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