Added FLOOR and CEIL function in operand.

Operand.cpp

@@ -328,9 +328,27 @@ namespace jet {
 	 } else
 	   throw coreutils::Exception("Expecting ) at end of TRUNC expression.");	 	 	 	 	 	 
       } else if(in.ifNextIgnoreCase("CEIL")) {
-	 
+	 if(!in.ifNext("("))
+	   throw coreutils::Exception("Expecting ( for CEIL parameters.");
+	 Operand parm1(in, tag);
+	 if(in.ifNext(")")) {
+	    doubleValue = ceil(parm1.doubleValue);
+	    isNumber = true;
+	    string = std::format("{:.12f}", doubleValue);
+	    string.removeTrailingZeros();	 
+	 } else
+	   throw coreutils::Exception("Expecting ) at end of CEIL expression.");	 	 	 	 	 	 	 
       } else if(in.ifNextIgnoreCase("FLOOR")) {
-	 
+	 if(!in.ifNext("("))
+	   throw coreutils::Exception("Expecting ( for FLOOR parameters.");
+	 Operand parm1(in, tag);
+	 if(in.ifNext(")")) {
+	    doubleValue = floor(parm1.doubleValue);
+	    isNumber = true;
+	    string = std::format("{:.12f}", doubleValue);
+	    string.removeTrailingZeros();	 
+	 } else
+	   throw coreutils::Exception("Expecting ) at end of FLOOR expression.");	 	 	 	 	 	 	 
       } else if(in.ifNextIgnoreCase("UNIXTIME")) {
 	 if(!in.ifNext("("))
 	   throw coreutils::Exception("Expecting ( for UNIXTIME.");