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There are also system functions available to users for saving the current workspace e.g., )SAVE and terminating the APL environment, e.g., )OFF - sometimes called hook commands or functions due to the use of a leading right parenthesis or hook. [16]
In computer programming, create, read, update, and delete (CRUD) are the four basic operations (actions) of persistent storage. [1] CRUD is also sometimes used to describe user interface conventions that facilitate viewing, searching, and changing information using computer-based forms and reports .
Similarly, a delete expression calls a delete function, also known as a deallocator function, whose name is operator delete. [ 2 ] [ 3 ] Any new expression that uses the placement syntax is a placement new expression, and any operator new or operator delete function that takes more than the mandatory first parameter ( std :: size_t ) is a ...
The STSC APL Compiler is a hybrid of a bytecode optimiser and a compiler – it enables compilation of functions to machine code provided that its sub-functions and globals are declared, but the interpreter is still used as a runtime library and to execute functions which do not meet the compilation requirements.
To the right is a workspace pane. Selecting a name in the list replaces the workspace's contents with a print string of the selected variable. Editing and "accepting" the text in the workspace pane when an instance variable is selected will assign the result of the evaluation to the selected variable.
In computing, an icon is a pictogram or ideogram displayed on a computer screen in order to help the user navigate a computer system.The icon itself is a quickly comprehensible symbol of a software tool, function, or a data file, accessible on the system and is more like a traffic sign than a detailed illustration of the actual entity it represents. [1]
LIBRARY DELETE [device:]program name – delete a program; LIBRARY LIST [device:][file name] – catalog; LIBRARY RUN [device:]program name [line number] – chain a program, optionally resuming at a specified line number; LIBRARY SAVE [device:]program name – save a program; LIBRARY EXIT – return to the PDP-8 monitor program; FOCAL-71 added:
R: replace the current with the expression provided; D: delete the current line; copy: copy the current line; cut: copy and delete the current line; paste: paste what was cut or copied before the current line; Each command could be modified with a numeric repeat value or with an asterisk (*): P;999: print next 999 lines from the current position