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root/Development/ray/src/util/rmatrix.c

Comparing ray/src/util/rmatrix.c (file contents):
Revision 2.50 by greg, Fri Mar 4 01:27:12 2022 UTC vs.
Revision 2.51 by greg, Fri Mar 4 02:07:34 2022 UTC

#	Line 204 | Line 204 | rmx_load_double(RMATRIX *rm, FILE *fp)
204		int     i;
205		#ifdef MAP_FILE
206		long    pos;            /* map memory to file if possible */
207	<	if (!rm->swapin && (pos = ftell(fp)) >= 0 && !(pos % sizeof(double))) {
207	>	if (!rm->swapin && array_size(rm) >= 1L<<20 &&
208	>	(pos = ftell(fp)) >= 0 && !(pos % sizeof(double))) {
209		rm->mapped = mmap(NULL, array_size(rm)+pos, PROT_READ|PROT_WRITE,
210		MAP_PRIVATE, fileno(fp), 0);
211		if (rm->mapped != MAP_FAILED) {

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