[SYSTEMDS-3833] Fix seq() length primitive (apply only when violated)

mboehm7 · mboehm7 · commit 775d06a3dbbd · 2025-02-09T12:26:56.000+01:00
diff --git a/src/main/java/org/apache/sysds/runtime/util/UtilFunctions.java b/src/main/java/org/apache/sysds/runtime/util/UtilFunctions.java
@@ -447,8 +447,8 @@ public static long getSeqLength(double from, double to, double incr, boolean che
 			else
 				return 0; // invalid loop configuration
 		}
-		long tmp = 1L + (long) Math.floor(to/incr - from/incr);
-		return tmp + ((from+tmp*incr <= to) ? 1 : 0);
+		long tmp = (long) Math.floor(to/incr - from/incr);
+		return 1L + tmp + ((from+tmp*incr < to) ? 1 : 0);
 	}
 	
 	/**

Original file line number	Diff line number	Diff line change
`@@ -447,8 +447,8 @@ public static long getSeqLength(double from, double to, double incr, boolean che`
`447`	`447`	`else`
`448`	`448`	`return 0; // invalid loop configuration`
`449`	`449`	`}`
`450`		`- long tmp = 1L + (long) Math.floor(to/incr - from/incr);`
`451`		`- return tmp + ((from+tmp*incr <= to) ? 1 : 0);`
	`450`	`+ long tmp = (long) Math.floor(to/incr - from/incr);`
	`451`	`+ return 1L + tmp + ((from+tmp*incr < to) ? 1 : 0);`
`452`	`452`	`}`
`453`	`453`
`454`	`454`	`/**`