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check program size

--- a/sys/src/libregexp/regcomp.c

+++ b/sys/src/libregexp/regcomp.c

@@ -188,6 +188,7 @@

 	parsetr = node(&plex, TSUB, e0(&plex), nil);

 //	prtree(parsetr, 0, 1);

+//	fprint(2, "Program size %ld\n", sizeof(Reprog) + sizeof(Reinst) * plex.instrs + sizeof(Rethread) * maxthr);

 	reprog = malloc(sizeof(Reprog) +

 	                sizeof(Reinst) * plex.instrs +

 	                sizeof(Rethread) * maxthr);

-- 

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