rtgrpblib_create_raster.c


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/* See LICENSE file for copyright and license details. */
#include "common.h"
#ifndef TEST


RASTER *
rtgrpblib_create_raster(size_t width, size_t height)
{
	RASTER *raster;

	if (!width || !height) {
		errno = EINVAL;
		return NULL;
	}

	if (width > (SIZE_MAX - offsetof(RASTER, cells)) / sizeof(*raster->cells) / height)
		goto enomem;
	raster = calloc(1, offsetof(RASTER, cells) + height * width * sizeof(*raster->cells));
	if (!raster) {
	enomem:
		errno = ENOMEM;
		return NULL;
	}

	raster->width = width;
	raster->height = height;
	raster->draftness = 0.5;
	return raster;
}


#else

int
main(void)
{
	return 0; /* TODO add test */
}

#endif