DO()
Calls a procedure or a function
- Syntax
-
- DO( <xFuncProc> [, <xArguments...>] )
- Arguments
-
- <xFuncProc> = Either a string with a function/procedure name to be called or a codeblock to evaluate.
- <xArguments> = arguments passed to a called function/procedure or to a codeblock.
- Returns
-
- A value that was returned from called function.
- Description
-
- This function can be called either by the harbour compiler or by user. The compiler always passes the item of IT_SYMBOL type that stores the name of procedure specified in DO <proc> WITH ... statement.
- If called procedure/function doesn't exist then a runtime error is generated.
- This function can be used as replacement of macro operator. It is also used internally to implement DO <proc> WITH <args...> In this case <xFuncProc> is of type HB_SYMB.
Examples
cbCode ={|x| MyFunc( x )}
DO( cbCode, 1 )
cFunction := "MyFunc"
xRetVal :=DO( cFunction, 2 )
Old style (slower):
DO &cFunction WITH 3
- Files
-
- Library is rtl