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 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 WITH In this case 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