CS-DROP

description:: CS-DROP "c-s-drop" Interpretation: Interpretation semantics for this word are undefined. Execution: ( C: orig|dest -- ) Remove the top element from the control-flow stack. An ambiguous condition exists if the top control-flow stack item is not an orig or dest.
status:: proposed for ANSI standardization, "seconded"

proposal:

Add CS-DROP to TOOLS EXT Add the word CS-DROP to the Programming-Tools extension word set with the following specification: 15.6.2.???? CS-DROP "c-s-drop" TOOLS EXT Interpretation: Interpretation semantics for this word are undefined. Execution: ( C: orig|dest -- ) Remove the top element from the control-flow stack. An ambiguous condition exists if the top control-flow stack item is not an orig or dest. In this connection, modify "15.6.2.1015 CS-PICK" to be: 15.6.2.1015 CS-PICK "c-s-pick" TOOLS EXT Interpretation: Interpretation semantics for this word are undefined. Execution: ( C: origu|destu ... orig0|dest0 -- origu|destu ... orig0|dest0 origu|destu ) ( S: u -- ) Remove u. Copy origu|destu to the top of the control-flow stack. An ambiguous condition exists if there are less than u+1 items, each of which shall be an orig or dest, on the control-flow stack before CS-PICK is executed. If the control-flow stack is implemented using the data stack, u shall be the topmost item on the data stack. An ambiguous condition exists if the same orig value is resolved multiple times. and extend "15.4.1.2 Ambiguous conditions": 15.4.1.2 Ambiguous conditions - resolving the same orig value multiple times

generated Wed Jul 23 02:53:34 2003^mlg